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ustin 19a 28. on of date. Engine agneto hasers ith Book the Coil

1. gees _ BRAKE LEVER CONNECTION The front Bub in section showing the grease plug A pons down more than twice to give the maximum charge 4 advisable Rear Hubs Remove the road wheel the wheel unl the plug at AT is at the top Inject grease into the hub ifthe handle of the gun is given two turns the grease will sufficient for ordinary maintenance purposes A section ofthe rear hub showing the grease plug Other Points Occasionally give a drop or so of oil to the engine control joints the door locks the hood frame hinges and all other small working joints This will keep them working smoothly without wear which would ultimately cause rattle ELECTRICAL EQUIPMENT lighting and starting units the Austin Seven car are arranged for wiring on the single wire system the return path of the current being provided by the frame instead of a second wire It is essential that all units are in metallic contact with the frame Should difficulties arise that cannot be understood or remedied from the information given below application should at once be made to the Austin Service Department or the nearest service depot of the makers of the equipment address page 53 Dynamo The dynamo is a simple self regulating third brush machine The only parts calling for any attention are the commutator and brushes which are
2. SYSTEME sis 5 Jd DYNAMO The 2785 5 of adjustment or methods of repair Owners need not ELECTRICAL EQUIPMENT The 23 suppose that they will have to apply all the attentions given ENGINE Lubrication of na in this book but careful notice should be taken of the i Ja e FAN chapters dealing with maintenance FRONT AXLE Lubrication of RU ul publications eave Habt of bre rae M 2 all the parts and their prices respectively and the owner should GREASE GUN Hort wa be E iS Front and Rear Labrkation of 3 find these books helpful for TENTER baal tae P Many of the adjustments and attentions described in the A following pages are included in the Austin Seven Schedule LAMPS Care of of Charges for Repairs The Company is confident that al LUBRICATION CHART 2 soc OIM owners will find it to their own benefit to make the fullest use MEE d an of this standard price repair and maintenance service which it REAR AXLE Lubrication of 4 E ES function ior ROAD SPRINGS Lubriesion d 2 E 0 RUNNING ADJUSTMENTS SHOCK ABSORBERS Adjustment of IMPORTANT See special note on page 52 with SEEMS 2 o rd STEERING GEAR Lubrication of owe 1 equipment not TOOLS Supplied i tured by the Austin Motor Ltd TYRES The gt o5 UNIVERSAL
3. now be pulled off the hub When replacing make gure that the large holes in the wheel centre are properly fitted over their pegs Should difficulty be experienced upon the first occasion of removing the wheel from the hub the wheel nuts may be screwed right off Before replacing wipe the outside of the brake drum ase inside of the bub with en this wil ess future occasions sur A PERIODICAL ATTENTIONS this and the opposite page a handy summary of all the attentions described in this handbook The attentions under the dei weekly and monthly headings are based assumption that the maximum miles wed des not exceed 300 mileage per bl Theoccasional attentions should not be neglected if the car is to continue to run efficiently When referring to the attentions below sce the tion chart on page 14 d Daily Attentioi 1 Examine water level in radiator and fill up to within 2 in of the top Always us the strainer when re filling as dirty water will cause the radiator film to become choked 2 Examine oil level in the crankcase and add more oil if necessary The tell tale dipper rod indicates the level of the oil see illustration page 27 Fil up the petrol tank necessary Care should be exercised when filling the tank not to spill the petrol over the engine Weekly Attentions prc T With the gr
4. 7 Pubtteation 619 Tm AUSTIN MOTOR CO LY _ LONGBRIDGE near BIRMINGHAM gute Price 2 6 18th EDITION THE AUSTIN MOTOR CO LTD LONGBRIDGE Nr BIRMINGHAM Crea Priory 2101 2110 Telegrams pity Cole SHowRoous REPAIR Deror AND Deer Oxford Street W Manor Telephone 6230 CONTENTS A Foreword AMMETER READINGS y ATTENTIONS Daily Weeks HE information contained in this Handbook is intended only to guide and assist owners or drivers of Austin ene Seven cars to preserve the car in proper satisfactory iai running condition This must not be considered as BRAKES the 14 exhaustive or as varying extending the liability of the BRAKE GEAR Lubrication v 3 company which is limited to the Warranty issued with the ut car Where no information is given for a particular 6 adjustment it may be regarded as one which the average Pid owner would entrust to garage When the occasion for i 15 adjustments of this character arises the owner should seek the Slow Running of 7 4 aid of an Austin agent Both owner and agent are encouraged MEUS en gt to call upon the Service Department of the Company for COMBUSTION CHAMBER Casing advice whether upon management of the car the effecting
5. 00 see sections Should the car be delivered by road it will be ready for running but if it has been transported by rail or overseas the engine may have become stiff through the gumming of the oil the pistons They may be freed by the injection of a little petrol into the cylinders through the compression plugs and thes D the engine a few revolutions with the starting handle 1 When a car is crated for dispatch overseas water fuel and are removed and the battery left empty and uncharged Starting the Engine Make sure that the and the hand brake on Turn on petrol tap at the bottom of the pet will be found under the bonnet tank this Set the engine control levers at the top of the steering wl Throttle open about in Ignition almost fully change speed lever is in neutral position Give the engine a few turns with the starting handle to make sure that the crankshaft is free pushing the handle in to engage fully with the starting nut before turning it then switch on tuiming the left hand switch to M Pull out the wire on the instrument board to close the car buretter air inlet and again give the crankshaft a few sharp tums by means of the starting handle making sure to pull the handle upwards to commence with or firmly press the starter switch sure to release the air shutter wire after the engine has started De not ty to start the enginewhencold
6. flywheel as before described Check the contact breaker If it has not commenced to open the timing late The timing is advanced by drawing the magneto back without revolving it detaching the rubber disc from both sets of teeth and turning it one tooth in the opposite direction to that in which the magneto revolves wlygh in this case means turning the top of the disc towards the operator as he stands at the offside of the car This as before described will advance the firing peint of the magneto relative to the driving spindle 1 380th circle Check and if still timed late advance still further To retard the coupling will be turned one or more teeth required in the opposite direction The order in which the cylinders fire is from the front 1 3 2 The COOLING SYSTEM cooling of the engine is maintained by a capacious radiator which should be filled with rain water if available up to within 2 in of the top of the filler The capacity of the radiator pipes and cylinder jackets is 9 pints In Cold Weather Care should be taken to sce that the water is drained off completely for in case of freezing it will do harm by lodging in Small spaces and fracture of the cylinder block may result Great Britain the climate does not very often call for the cooling system to be drained but it is well to on the right side and take due precaution against damage if fr
7. is stationary These factors are Joints not air tight Valve guides worn Valves not seating Ignition too much advanced Engine Misfires and Stops made as in the last instance the engine misses fire now and again the transmission receives jerks and the engine finally stops In this case fit a larger compensator until the engine runs regularly The Float Chamber Petrol leakage from the float chamber may be due to the caps under the jets not being tight or a leaking petrol pipe union If leakage seems possible at these points suspect float chamber derangement which is causing petrol to overflow the jets It may be that the float control is out of adjustment the float may be perforated or the needle not seating properly owing to dirt on the needle seating The remedy for the last mentioned defect is obvious the first two defects should be left to an expert to remedy When replacing the float chamber cover ensure that the needle has entered its seating and is free to be moved by the float also that the cover beds down properly then secure it with the clip Petrol Flow 1E ka petrol supply from tank yet cl starting pointe to pet here resin Somewhere in the carburetier Fics Hiat ha air vent in the float chamber cover under the retaining clip is clear Should it be so the next point to examine ie the Alter below the float chamber and the passage from it to the needle seating Access
8. lubricator for oiling the cam spindle bearing These and all other joints should be oiled once week The front brake cam spindle is lubricated from the swivel pin shown at in the illustration overleaf Front Axle The swivel pins are lubricated should receive attention once a week Radius Rod Anchorage Oil should be applied occasionally to the cups and ball flange forming the radius rod anchorage on the front cross member just below the rear of the gearbox the grease gun and 30 Shock Absorbers The shock absorbers should be lubricated only after dismantling them see page 47 Windscreen Wiper drop of thin oil should be occasionally applied to the windscreen wiper mechanism say once a month small screw except in the Trico model is removable from the top of the casing allowing the oil to be injected Fan The fan bearing requires a charge of grease once a month through the nipple on the fan bracket Grease Nipples If a grease nipple gets choked unscrew and remove it It can usually be cleared by soaking it in paraffin or petrol ing either of these through it but should it be found impossible to clear it fit new nipple in its place Road Springs The ends of the road springs where they are attached to the axles are provided with grease gun connections and should be given a charge once a week if the car is continually used After long period of use i
9. DIMENSIONS ENGINE STARTER GEARBOX REAR AXLE SPRINGS STEERING FRONT AXLE BRAKES WHEELS CONTROLS Throttle and ma PETROL TANK LIGHTING BODYWORK Full car length 9 ft 2 in ih 5 Wh Throespeeds forward 796 mm Full car width in ll heclbase ft 3 in 1905 mm Track 3 ft 4 in 1010 mm Weight approx cw ke Ground clearance 81 in 20 mm ener detachable head 72218 G6 mm 1 Ce mm 2875 e e rating 78h Brake horse power 105 at 2400 rev Ignition Magneto Gil circulation by pump Thermoceyphon with film radiator and fan Rolle crankshalt bearings Electrical Single plate ind reverse ratios 4910 1 9t0 Ball bearings throughout and I60 1 reve floating with differential and torque tube Hal beatings apd thane throughout Final dive by shaft and helical bevel Lelipic cross spring in front elits ot rear absorbers are fitted to front and rear Worn and wheel having provision for taking up wear Forged section Qn all four wheels compensated and easily adjustable Hand brake to the front wheels Foot brake to the esr Special wire detachable fitted with 26 in 3 in Dunlop balloon reinforced cord tyres One pate wheel with tyre Gear lever in ga lever mounted centrally Tevers mounted on the steering wheel Foot accelerator
10. as this will cause excessive overcharging of the battery and the consequent reduction of the acid level Should the state of the battery be continually bad see that all its connections through the starter switch to the switchboard are tight and unbroken and that no wire has a chafed covering allowing leakage of current to the frame The Elegtrolyte the battery arrives empty as in the case of cars sent abroad the first thing to do is to fill and charge it This means that a fluid is prepared composed of one part by volume of pure brimstone concentrated sulphuric acid with three parts by volume of distilled water Mix these in a glazed earthenware vessel Great care must be taken in this operation Add the acid in very small quantities almost drop drop and stir with a glass rod Never add the water to the acid This is highly dangerous ad explosion may remi arm is mixing generates heat and it is important that electrolyte as the mixture is called should not be used in the battery before it has been allowed to cool into the cells of the battery by means of leat glass until it completely fills the cells to the top of the vent CARE OF THE LAMPS Bulb Replacement remove the front of the head or side lamps for a bulb iacet press the front rim evenly and then rotate to the left looking at the front of the lamp as far as poss
11. cleaned at the same time care being taken not to damage or break them When the distributor cover is removed examine the carbon brush in the distributor rotor making sure that it slides freely Do not remove it from its guide unnecessarily and take care not to strain the spring TROUBLES AND REMEDIES RREGULAR firing or faulty ignition may be traceable to slight defects in the magneto or carburetter A partially choked jet or an incorrect petrol level may be the fault Air leaks in the induction system are a possible cause of bad starting and irregular running at low speeds For faulty ignition First examine the sparking plugs and test the gap of the plug points by means of the thick blade of the sparking plug and tappet clearance gauge provided in the kit If the points are dirty clean them before replacing A sudden failure of the ignition may result from the short circuiting of the switch cable attached to the terminal on the inspection cover of the contact breaker This can be readily detected by discon necting this cable from the terminal when the engine should fire properly 2 TIMING THE IGNITION Should it become necessary to re time the magneto itis as well that the operator should know that the magneto on the Austin Seven is coupled up to its driving shaft by means of patented drive which provides extremely fine adjustment that the magneto can be correctly timed The Magneto Coupling This d
12. make sure that its narrowest internal diameter is downwards and that it beds down on the ledge OIL MONTHLY GREASE MONTHLY B OIL WEEKLY screw can be tightened When refitting the carburetter to the induction manifold ensure that there is a good joint between the flanges round the bottom of the carburetter bore then the locking Poor Acceleration When picking up isrbad or when it is impossible to obtain a sharp the choke tube is too large The teste for pick up should made on the level Let the car run at a good speed slow down sieh hen pes the accelerator down sharply ae far as it will go The car should then quickly pick up its previous Speed without Pick up its previow If instead of accelerating the engine stops try la compensators If in spite ofthis the picking up is not the choke tube is too large in which ease fit another one or tw millimetres smaller and try again until the acceleration perfect THROTTLE m sr The Zenith carburetter tue 16 tan Jo be 238 Lack of Speed With too small a choke tube the pick up is excel the speed attained on the level with the accelerator ra dos is insuffcient a larger choke tube is then fitted and the jet altered proportionally when the tests are continue
13. radius rod anchorage below the gearbox and the torque tube socket neglect of which points might be expensive repair and the inability to use th car for a lengthy Occasionally clean the peel flex und strainers the radiator filler strainer the oil filler strainer and the oil reservoir gauze when the engine oil can be changed also ensure that the oil jets under the plugs on the crankcase are clean Drain the gearbox and refill with fresh oil pint Flush the radiator through Clean the magneto dis and the contact Broder in an aeri the shock absorbers adjust the tappets and the belt decarbonize the engine and grind in the valves Check the alignment of the front wheels For details of these attentions refer to the pages that follow LUBRICATION CHART WENGH C The CARBURETTER carburetter which is adjusted by determining the correct sizes of the choke tube main jet and compensator The purpose of the choke tube is to obtain the correct velocity of air around the jet in order to get the best mixture at all speeds The main jet has most influence at high speeds The com pensator which corrects the irregularities of the main jet flow due to differences in engine speed has the greatest influence at slow speeds Besides these three parts there is special device to provide for slow running The carburetter is tune
14. readily accessible when the cover is removed The commutator surface must be kept clean and free from any or brush dust It may be cleaned with ordinary soft rag but if it has been neglected use fine glass paper Blow away any carbon dust see that the carbon brushes are wearing evenly and move freely in their holders To fit a new brush itis only necessary to release the brush tag hold back the brush trigger and then withdraw the worn brush from its holder The new brush can then be fitted by reversing the above operations The dynamo bearings are packed with grease before leaving the works and need very little attention A few drops of ordinary engine oil however may be added through the lubricator say every 1 000 miles The owner is cautioned that far more trouble is caused by excessive oiling than by too little Starting Motor The commutator is accessible on removing the clip secured cover The unit requires very little attention beyond keeping the commutator clean and free from oil brush dust ete as in rey a hne the preliminary precautions that you would observe if starting by hand such as flooding the carburetter etc Remember that although the starter will turn the engine over however stiff it is advisable to crank the engine over by hand two or three revolutions as this will considerably diminish the load for starting If the starter pinion jams in mesh with the flywheel ring when operating the
15. shaft push the hub over the axle shale the key and draw it up to the felt housing by the wheel nuts gn their studs When Ee joint f ves Ee UT and the fat using are together replace the axle nut and tighten securely up to the hub boss Remember fo insert the split pin through the nul Then remove the wheel nuts from the hub fit the brake drum and insert and tighten the three screwdriver screws Front Brakes For the front brakes see illustration on page 32 the opera tion is somewhat similar Having removed the wheel and the brake drum secured by the three screws remove the hub cap and screw on the extractor in its place Before proceeding further remove the plug A from the hub or unscrew it for about three tums otherwise it will foul the outer hub bearing when the hub is being extracted Draw off the outer portion of the hub The axle nut and split pin will now be accessible for 5 removal Now replace the outer portion of the hub and pull it up to its original position by the wheel nuts as in the case Athe gear wheel By means of the extractor draw off the hub Sih i bearing and packing The brake shoes are left clear Tur removal On reassembling remember to fit a new split pin Pou the axle and nut there is a hole in the end of the hub through which the pin can be inserted TU always necessary to re line all four brake shoes on the one ale at the same time and after the re lining it ma
16. starting handle in to engage fully with the starting nut Don t be cruel to the starter if the engine will not fire Don t touch the reverse catch when changing gear Don t put an excessive quantity of lubricant in the gear box Don t pour oil into the engine with the strainer removed Don t forget the ignition switch when starting up Don t run the engine in a closed garage The exhaust gases are highly toxic and a very small amount in a restricted atmosphere will produce grave if not fatal results LUBRICATION Choice of Lubricants Wakefield s Castrol XL and Duckham s Adcol NP 3 and 4 Use ordinary engine oil in the small can and ordinary yellow grease for greasing Both these lubricants can be obtained from any garage or repair shop Use High Speed grease for the rear universal joint of the drive shaft The Engine When the new car is sent out the engine and gearbox is filled with Sternol W W Heavy to the proper level Onno account must different brands of oil be used in the engine at the same time or mixed in any way If the oil is too thick it will tend to clog and carbonise and if too thin it might lead to scoring of the pistons and bearings Assurance that oil is continuously circulating is given to the driver by means of the tell tale button on the instrument board which protrudes when the oil is circulating It is essential that all receptacles for oil be kept p
17. system should be thoroughly flushed occasionally To do this open the drain tap at the bottom place a hose in the filler and run fresh water through Trouble arising from a damaged radiator generally necessitates its dismantling and despatch to a repair depot How To Use THE GREASE GUN Screw the handle right out Unscrew the extension piece by the knurled nut at the base of the barrel and fill the barrel with grease then replace Give the handle one complete this fills the telescopic extension piece at the end of the h will project Now place the end of the gun on the nipple attached to that part of the car which it is desired to grease and push The extension piece closes and discharges the grease into the nipple Give the handle another turn and the gun is once more charged Continue until the barrel is empty and then refill For the rear universal joint and the back axle a special adapter is used on the gun in place of the standard telescopic end This adapter screws into the part to be greased in place of the plug When replacing the plug do not omit its washer It is important not to let dirt get into the adapter which when not in use is screwed onto the side of the gun DON T Don t please don t Don t leave the car in gear with the handbrake off Don t make a fast run with the radiator muff down Don t fil the radiator with cold water when the engine is hot Don t try to turn the engine without first pushing the
18. the bearings and seriously affect the clutch causing it to slip the other hand there must be sufficient oil to prevent wear The gearbox should be drained entirely after the first 500 800 miles and then after every 4 000 or 5 000 miles when any grit etc which may have collected will drain away through the plug hole im the sump The gearbox drain plug holds the clutch pit drainhole coverinposition andthisshould be replaced when the drain plug is refitted Clutch The clutch faces being of fabric material must be kept free from oil and grease or the clutch will fail to grip It is necessary to lubricate the operating ring at point A as shown on the sketch once a week with oil Steering Gear To obtain easy steering itis important to give it attention as regards lubrication The grease gun nipple is on the top of the worm case and charge is a month it is sufficient to lubricate the bearings of the worm and worm wheel and also lubricate the worm itself Howdver if too much grease is injected at this point it will get up the column and exude round the steering wheel The bearing at the topof the column just under the steering wheel can be given a little oil from the oil can The steering connections on the side rod are best lubricated by means of an oil can which ejects the oil under pressure into the sockets and the nipples at the end of the cross rod should be given cha
19. the contact breaker The correctness of this gap is tested by the gauge on the side of the magneto spanner oo great a gap will advance the timing and cause wear on the points The adjustment is made by turning the screw B after releasing the lock nut C Tighten the lock nut again when the adjustment has been completed Keep the points free from Should they become ragged have them trimmed lightly th a dead smooth file by a skilled man Tue Comer Disruperon Fixed platinum point Adjusting sere Lock Com cage in Bell crank retaining stip mcos gt If necessary the whole of the contact breaker can be removed though adjustments to the points can usually be effected with itin position To detach remove the cam ring 0 unscrew the central nut with the small special spanner provided In replacing the contact breaker care must be taken to see that the projection on the taper portion of the contact breaker base engages with the keyway cut in the armature also the hexagon securing screw must be absolutely otherwise sparking at the points and erratic running of the magneto will occur Lift the end of the retaining strip E when the bell crank can be withdrawn The distributor and brush holder require attention Remove the distributor and clean inside it with a cloth soaked in petrol Any dust or foreign matter that may accumulate inside the dis tributor is liable to cause leakage the s
20. to this filter is given by removing the petrol pipe union and un terewing the petrol inlet nut the battom of the float chamber slow running tube and jet may be stopped up Remove the alow running tubs bodily having loosened ts locking screw Inthe bottom of the tube a small flier which ean be pried out and cleaned The bottom portion of the tube comprising the jet may be thes unscrewed Irom the top portion end the jet leaned if stopped up two flats on the jet allow a emall spanner De nbl to utero Lastly the eot pred jus be choked thin acid cicer thes Doer anything any of tha pts always How topi o clan them a tyre pump can be used if desired When refitting the slow running tube ensure that it beds down to collar at the top with the small projection under the collar fitting the groove in the carburetter casting then tighten the locking screw Difficulty in Starting 5 lue to several causes 2 This may Beber ait vont stopped up see previous page tube stopped up sce previous page Plug points too far apart See Ignition d Teuton lever badly placed See next paragraph Jet choked up se previous page With variable ignition there is generally favourable setting for easy starting who car soon recognises this position STANDARD REPAIR CHARGES T following adjustments and repairs described in this particularly c
21. Acton Vale London W3 Sparton Graham amp St Andrews Works Crofton Park London SE4 Rist Ltd Waveney Works Lowestoft Kiaxon Ltd Landor Street Birmingham and 36 Blandford Street London Benjamin Electric Ltd Brantwood Works Road Tottenham London NI 52 Sygnol Clear res Mie 79 Lembard Street Desmo Desmo Limited Desmo House DE Windscreen Wipers Joseph Laces Lid Gt Hampton Stet Folbeth Vokes amp Lid 95 Lower Rich mond Road London LR Did Were Works Coren Electrical Equipment Joseph Lucas Ltd Ct Hampt Street Birmingham and Dordrecht osi Acton Vals Londen Vandervell amp loseph Lucas Li Dynamos Starters Rond Acton and Sudlchloards Delco Remy amp Hyatt Ltd Grosvenor Road London Trico Lucas and Remy Lamps Luca Joseph Lucas Ltd Gt Ha iue ST Acton Vale London W3 Joseph Lucas Lid Gt Hampton Stet irmingham and Dordrecht Road Acton Vale London W3 Batteries Lucas Joseph Lucas Ltd Gt Hampton Street con Vale London WS Chloride Electrical Storage Co Ltd pu den Road Acton Londo Accumulator 1926 Ltd Chadwell Hon epee Grease Guns amp Injectors Enots Benton amp Stone E pee Ltd Bracebr
22. JOINT Lubrication of May 1928 gt VALVE TAPPETS Adjustment of f WHEEL Changing a CM d WIRING Wanration of mc The AUSTIN SEVEN in the world 2 It is designed for and will carry in comfort thn 3 i three adults or are three models mad NL ce model made the Tourer the Salon nd the Fabric Saloon The Tourer wiih hood and side curtaine shat open with Gan Provides complete protection im even the munt Tee end he Metal Saloon of very and womit ines and has sliding panel im the windows male adaptable weather se Page pcre on face Fabric Saloon is its wide door which allons rey terns Sree fom the back seats The door of dig eo es one lifting glass panel and one slid convenient window arrangement ing panel a very In all models the ror seat tilts forward and Jt has cylinder water cooled bevel drive through the diferental Lae by pump and eoolin fant and cooling ison the thermo ayphon system att by sp The complete equipment ii lighting air strangler electric ho des clectric starting amd hon speedometer automate and tyre and pope Ae 4 Brakes are fitted to all four wheels which carry 26X3 in Dunlop balloon reinforced cord tyres The Austin Seven i
23. Registration No Driving Licence No Insurance Policy No
24. THLY JOURNAL OF ROAD TRAVEL Fach number contains useful information on the adjustment and maintenance of Austin Cars Obtainable at all bookstalls Price 4d 5 per annum post free F EQUIPMENT APPLICABLE TO ALL MODELS The Austin Motor Co Ltd accept no liability under the terms of their Warranty for Tyres Speedometers or the Electrical Equipment or other goods including Goachwork not of their own manufacture claims relating to any of these parts or fittings or orders for repairs to them should be addressed to their manufacturers For our clients convenience we give below the names and addresses of the manufacturers or suppliers of the goods in question IMPORTANT When claims under guarantee are being made it is absolutely necessary to quote the type and number of car and also the commissioning date Magnetos BLILC Joseph Lucas Ltd Gt Hampton Street Birmingham and Dordrecht Road Acton Vale London W3 British Thomson Houston Co Ltd Alma Street Coventry ML Magneto Syndicate Ltd Victoria Works Coventry Joseph Lucas Ltd Gt Hampton Street Birmingham and Dordrecht Road Acton Vale London W3 North amp Sons Whippendell Road Watford Service by Ripaults Ltd 1 Kings Road St Pancras London 1 Scilla Ltd 14 Clerkenwell Close London d Joseph Lucas Ltd Gt Hampton Street ing ofthe Road Birmingham and Dordrecht Road 3
25. by the electric starter It is most important that the engine be not allowed to race when first starting up as time must be allowed for the oil to circulate and lubricate various bearings Difficulty in Starting Difficulty in starting may be caused either through sucking too much petrol into the cylinder or too little If one starts with the throttle all but closed a strong suction takes effect on the pilot jet and it is seldom necessary to flood the carburetter and in any case it should only be flooded slightly If petrol is passing through the carburetter the suction can generally be heard If the engine fails to start and there is a good deal of petrol overflowing from the carbureiter it is almost certain that the mixture getting into the cylinder is too rich In this case open the throttle about half way This reduces the suction effect by allowing a greater proportion of air to enter the engine On firing the engine may race away but will soon settle down to steady running 1 the engine does not fire close the throttle entirely and try again After a stop in hot weather failure of the engine to start is more likely to be due to too rich mixture than one too lean and one should stop the engine by the switch only after quite closing the throttle Re start the engine with the throttle closed If after the foregoing measures have been carried out the engine fails to start the reason will probably be due to faulty ignition or carburatio
26. d and set at the works to give the best results under ordinary conditions should the car be taken to districts where the atmospheric conditions vary considerably or a different fuel be used it may be advisable to adjust the carburetter accordingly Before making alterations to the carburetter make quite sure that the engine is in good running order particularly the ignition following notes have reference to the Zenith Method of Adjustment Before altering the carburetter setting turn off the petrol by means of the tap underneath the tank A jet key is sent out with each car for the purpose of taking out the main and com pensating jets The caps below the jets must be removed by means of the adjustable spanner when the jets can be unscrewed with the special key When replacing either make sure that they have washers on them and are well down on the shoulder To remove the choke tube it is necessary to separate the carburetter from the induction manifold flange first having disconnected the throttle and air strangler controls and the petrol pipe at its union on the float chamber The throttle fixing screw should then be removed allowing the throttle spindle to be withdrawn and the throttle to be lifted from the carburetter bore unscrewing the choke tube locking screw the choke tube will usually fall clear if the carburetter is turned upside down in any event a slight tap will usually loosen it When refitting a choke tube
27. d until a satisfactory maximum speed is attained Choking and Hunting ascertain the correct size of the main jet the testis made on the level at high speed jet which soot teres fuses choking and the engine often runs jerky and hunts The petrol copsimption is loo excessive The et that gives the reatest sj on the level is chosen If two jets give an eque speed choose the smaller on the score ofeconom al 16 No Power When the car gets away badly and popping back occurs in the cubureter when accelerating the mun jet is too smal This popping back occurs at irregular intervals and the engine has little power and cannot drive the car at a high speed Fit larger jets until these explosions in the inlet pipe disappear and then test until the right jet has been found as indicated in previous paragraph The popping back may also be due to air leaking into the induction pipe through joints which are not air tight to leakage at the extra valve to the valves not closing properly Test the tappet clearances by the thin blade of the sparking plug and tappet clearance gauge In some cases popping back is due to the engine being cold and will cease when it has been running for a little time Irregular Firing The trials of different compensators should take place up an incline with the engine driving the car at a speed it scarcely maintain say 300 to 500 r p m The compensator is too large when th
28. e engine at this speed runs with an irregular jerky motion the hunting which takes place at high speed in the case of too large a main jet is found at low speeds with too large a compensator The size of the compensator is decreased until all the cylinders fire evenly and the exhaust is quite regul As in the case of the main jet if two compensators give equi results choose the smaller on the score of economy The compensator plays a great part in the picking up but when e of the former is determined according to the above method itis generally suitable for an excellent acceleration Slow Running Device Note that too much petrol for slow running causes choking and hesitation in pick up A want of petrol on the other hand causes loss of power and misfiring at the same time It therefore necessary to regulate the slow running as carefully possible first releasing the lock nut and then tu knurled screw B to the right a greater flow of petrol is obtained while it can be cut down by turning the serew to the left This device can be drawn out after releasing the lock nut and slackening the round headed screw A on the side It is possible to unscrew the lower half C from the upper with a pair of pliers in order to see if itis clear There are other factors quite apart from the carburetter which have great influence on slow running slow running when the engine is out of gear and the
29. e guide until the dirt is removed Then the valve should be cleaned and the stem smeared with graphite grease and re inserted in the guide the valve spring and cup being fitted up round it The valve lifter is then used as before to compress the spring so that the split cotter can be refitted The smaller diameter of the complete cotter should be uppermost and the cotter should be fitted down onto the collar at the bottom of the stem The grease on the stem will help to hold it in position while the lifter screw is slackened to allow the valve cup to come down over the cotter It is easiest if the end valves are fitted first working towards the centre ones When refitting the mani folds ensure that the joints are good The cylinder head joint washer should be replaced copper side downward with a little graphite grease smeared over each side to make good joint and to prevent it sticking when the head has next to be lifted Note that it is essential for each valve to be ground in and refitted on its own seating as indicated by the number on the valve head The valves are numbered from to 8 starting from the front When replacing the head take care to tighten the nuts evenly Don t forget after replacing the head to refill the radiator Lifting the Cylinder Block For access to the pistons except the piston crowns and the connecting rods or for fitting new tappet plunger guide va
30. e points about every six months spot of on the end of the contact breaker pivot pi fo as to lubricate the bearing t Je care not to let the contact spring get rusty rust certain to lead to breakage Any sign of rusting should be checked at once a 4 Do not attempt to run with a very large gap between the contact points They wear more rapidly and the machine will be less efficient because the armature will not be in the best position when the circuit is broken Spark Gap Do not use any form of amplifier or spark gap in connection with the magneto No improvement will be obtained and its use may lead to high voltages and possible breakdown Insulating Surfaces wet and dirt on insulation will often cause leakage and bad starting itis advisable to keep the outside of the distributor to which the H T cables are connected reasonably clean and free from accumulation of dirt and dust In addition the distributor should be removed about every 5 000 miles and the interior wiped out with petrol and scft rag As the RFA magneto is of the revolving field type there is no brush holder and slip ring at the other end of the magneto to require attention and the whole of the insulation is exposed when the distributor block is removed If the insulation of the distributor rotor or the insulating bush passing through the centre of the gear wheel are dirty these should be
31. ease gun Front spring shackle pins 4 Rear spring pins 2 Front wheel swivel pins 2 Steering cross tube 2 2 Oil the following Handbrake gear Pedal gear and jaw joints Engine control and ball joints Clutch release ring Rear brake cam spindles 2 Steering side tube joints 2 3 Examine both sets of brakes and adjust necessary 2 4 Inject high speed grease such as Messrs Stern s Diamol into the iversal joint at the rear end of the propeller shaft using the special adapter on the grease gun and yellow grease into the front end of the torque tube 5 Test the tyres for correct pressure and examine them for cuts see page 50 Monthly Attentions 1 Examine the oil level in the gearbox which should contain two thirds of pint or measure 2 2 in deep 2 Gharge the back axle case with a gunful of grease and oil mixed half and half using the special adapter on the grease gun 3 Fill all the hubs with grease as described on pages 31 and 32 4 Charge with grease the steering worm case through the nipple 5 Examine the battery and see that the connections are tight For details see page 35 6 Give a charge of grease to the nipple on the fan spindle Occasional Attentions Esasine all bois and nuts euch as teed spring cip cylinder head nuts wheel nuts three especially when the car is new examine other paris such as steering connections the
32. eather leave the hood up to dry Never fold it when wet The joints will be stiff when new they are intentionally order that they will not rattle when they have worked in Each joint and hinge should have drop of oil occasionally ill ease the movement The best dressing for the Seven hood is good quality black boot polish Brush it in particularly round the seams and rub it well so that the polish is forced into the grain of the material to keep it waterproof CARE of the BODYWORK the car to look well and keep its beauty and smart appearance the body must be given its share of attention it must not be neglected Washing The cellulose finish of the car is easily cleaned and polished In summer weather when the car is only dusty the dust can be removed without water and there is no risk of damaging the finish When the car is muddy wash off well with clean running water Remove any grease or tar splashes with petrol Dont use the same sponge and cleaning cloths for the chassis and springs and other greasy parts as are used for the coachwork Polishing Dry off and then polish with one of the special polishes now marketed Such preparations impart a brilliant surface and preserve and beautify the body no account should metal Polishes be used as are sometimes advertised for cellulose It has been found that the more the surface of the cellulose finish is rubbed by t
33. erfectly dean Dirty oil leads to undue wearofallbearings or might even clog up the oiling 8 stem and prevent vel working thus causing an engine seizure and much trouble and ex pense The oil strainer A is detachable for cleaning After the first 500 800 miles ing drain the the reservoir by removing the plug in the bottom while the engine is hot Drain the reservoir completely Never pour oil into the engine except through the strainer After the first re filling it is advisable to change the oil in the engine entirely after every 1 200 to 1 500 miles running or sooner Every 2 400 3 000 miles remove the oil reservoir The gauze oil tray will then be accessible for removal Carefully clean the gauze and remove all dirt from inside the reservoir and replace them Carefully remake the joint with the packing washer covering both sides of it with grease When tightening up the nuts holding the oil reservoir to the crankcase do not pull up one nut tight but tighten each nut equally a little at time See that the drainplug is screwed up tight then fill the crankcase with oil to the maximum level as shown on the dipper rod About half a gallon will be enough to fill Always inspect the level of the oil and add enough to fill to the correct level before starting on a long journey The oil level should not be allowed to go below inch on the bottom of the dipper rod 1 i
34. from its keyway inthe axle shaft Next remove the bearing nut having knocked back the tang of the washer locking it and prise the inner portion of the hub or felt housing together with felt packing and bearing off the end of the axle casing Do not damage the paper washer between the hub and the felt housing faces as it is important to make a good joint on reassembling to prevent the hub lubricant penetrating to the brake If this inner portion of the hub does not easily come off the axle casing the outer half should be refitted as closely as possible using the wheel nuts to draw the two halves together Then use the hub extractor second time and so remove the hub together with bearing and Packing The brake shoes can now be pulled off the cam and ivot pin and the springs unhooked The old linings can then Be detached by punching or drilling out the rivets The brake linings should be clamped to the shoes while the riveting is in progress as it is essential that they should bed down on the shoes over their whole area Reassembling To reassemble replace the shoes with their springs on the and pivot pin Replace the inner portion of tho hub or felt housing with the bearing and packing on the axle casing end and push up home by tightening the bearing nut which must be locked by the locking washer the same way as before dismantling Replace the paper joint washer on the felt housing face insert the key in the
35. he polishing cloth the smoother and more lasting is the lustre imparted STORING THE CAR Should the be laid up in the garage for long periods the fuel and water should be drained off and the batteries removed and weight taken off the tyres THE TYRES Pressure The minimum pressure at which both front and back tyres should be inflated is 20 Ibs Should due to wear or other causes the steering at any time develop a tendency to wander or show signs of wobble this pressure should be increased It is important that both front tyres should be kept at the same pressure In any event there is no reason why the pressure should not be more than the minimum figure given as some drivers prefer their tyres harder than do others As tyres form such a large item in the running costs of a car itis advisable to give them periodical examination and attention cursory glance should be given daily to see that none of the tyres is unduly slack and a weekly test with a suitable gauge should be made to verily the pressures Occasionally examine the tyre treads for cuts bad cuts should be vulcanized Tyre Wear Because of the turning in of the wheels towards each other at their lowest point it has been found that the front side tyre wears at its outer edge The camber of the road tilts the car towards the left and the tyres are distorted It is in the action of recovering their correct shape immediately after contact with t
36. he road that they suffer abrasion made more damaging because the gritty substances now used on tarmac road accumulate on the near side and the wheel is running in this grit for most of time itis on the road So change your front wheels over and thus equalize the wear between the tyres When both tyres have become worn on the outside edge change over the back wheels with the front wheels Subsequently the tyres can be turned round bringing the least worn edge to the outside If the front tyres should show premature wear at any time suspect the tracking of the front wheels Have it checked to see if it is correct and if necessary adjusted sce page 42 50 TOOLS SUPPLIED WITH THE CAR and in box spanner Tool wra and in box spanner J in and double open Sparking plug box spanner and tommy bar end spanner Hise double open for detachable wheels ELS Tyre levers thin and in double open TYre pump pete Lifting jack with handle Adjustable spanner 4 in Serewdrver Sparking plug and tappet Hub capandsteeringcolumn clearance gauge Grease gun with adapter Magneto spanner Valve spring lifter appet adjusting spanner Trade mark panner for dynamo casing Combination pliers and monobloc nuts Hub extractor plate A spare cylinder head joint washer is also supplied 5 READ THE AUSTIN MAGAZINE AND ADVOCATE A MON
37. he sparking plugs Remove the nuts Holding doy the head Then take hold of the hebil at enc Removing the Carbon When the hend has been removed the valves and toe of pistons will be exposed to view All dirt or deposit should be removed by carefully scraping with a sharp tool Before grinding in the valves it will be necessary to remove the inlet pipe and exhaust manifold and carburetter first turning off the petrol and uncoupling the pipe under the float chamber then disconnecting the carburetter control the air strangler wire and the windscreen wiper tubing The valve cover with its cork er can be removed on undoing the two milled nuts acheive mit bed Fasc tHe special provided to allow the split cotter A to come out see illustration then remove the spring The valve ia now Pee 0 bo when the fappet screw hes b sn loversd clear of the st After it is cl 4 a little grinding compound should be smeared evenly on its face and the valve rotated backwards sa forwards advancing it stop at short intervals unti the pitting is removed Care should be taken that none of the compound enters the cylinders and the valve and seating should be wiped clean after operation lt is also desirable to clean the valve guides This can be done by dipping the valve stem in petrol or paraffin and moving it up and down and round in th
38. hould be added to bring the level well above the plates if however acid solution has been spilled it should be replaced by a diluted sulphuric acid solution of 1 275 specific gravity It is important when examining the cells that naked lights should not be held near the vents on account of the possible danger of igniting the gas coming from the plates It is advisable to complete the inspection by measuring the specific gravity of the acid ths gives a very good indication of the state of charge of the battery instrument known as a hydrometer is employed for this purpose this may be obtained at the Austin Service Depart ment or from the service depots of the makers of the equipment Charging Period It is difficult to lay down rigid instructions on this subject as the condition under which cars are used vary considerably and obviously the amount of charging the battery will require is directly dependent on the number of starts made and the extent to which the lamps are used The following suggestions will serve as a rough guide 1 Under normal conditions providing that the lamps and starter are used a fair amount the battery should be kept charge all the time during the winter and half the daytime running in the summer 2 Always keep the battery charging switch on when the lamps are in use If the car is used for long hours in the daytime it is unnecessary to keep the charging switch on all the time
39. ible when the front may easily be withdrawn In the case Of a tail lamp bulb replacement the front is removed by screwing it to the left Bulb Sizes The sizes of the bulbs are Head No D618 No 74 The Reflectors The reflector of lamp is a delicate optical instrument not part ofthe metal work of the and easily and destructively metal polishes brick dust or paraffin used to clean it ial soft cleaning cloths should be kept solely for the reflec pea Bo not touch them unless tarnished then clean Carefully with a fine chamois leather and rouge wet with petrol Care of the Outer Body Ifthe ebony black becomes dull in service the original finish can be restored no matter how neglected it may be by a good furniture or car polish Focussing Unless the focus of the bulb in the reflector is correct quite half the possible light may be lost A correct focus is secured by means of the choice of several posi may be fixed Set the lamps correctly level pointing neither up mor down They be adjusted either horizontally or vertically by slackening the nut holding the lamp to the bracket RUNNING ADJUSTMENTS HE adjustments set out below are all that the amateur owner will find necessary to make to keep the car in good running order Valve Tappet Adjustment To ensure obtaining the full power of the engine and to maintain silence in the valve operat
40. idge Street Jeavons Ramadan Halifax Ltd Station Works Speedometers and Fi M Fittings Clocks and 5 Smith amp Sons M A Works Landon RA Bodies amp Fittings Mulliner Mulliners Ltd Bordesley Green Road Birmingham lirmingham Gordon Gordon amp Co Taunton Road Spark brook Birmingham Hoyal Hoyal Body Corporation Ltd 41 Charing Cross Road London W C 2 Gordon Gordon England Ltd Palace of Industry England Wembley Startin Startin Junr 71 Aston North Road Birmingham Driving Mirrors Lucas Joseph Lucas Ltd Gt Hampton Street Kine of the Rend Birmingham Desmo Desmo Ltd Desmo House 31 Stafford Street Birmingham Tyres amp Tubes Dunlop Dunlop Rubber Co Ltd Fort Dunlop Erdington Birmingham Autovac Autovac Manufacturing Ltd Autovac Works Heaton Norris Stockport Carburetters Zenith Zenith Carburetter Ltd 40 42 man Street London Radiator Thermometers Benjamin Electric Ltd Brantwood Works Boyce Tait Road Totenham London Galormeter Wilmot Manufacturing Ltd Camden Street Birmingham Lifting Jacks Midas Lake amp Elliot Ltd Albion Works Brain tree Essex Shelley T Shelley Ltd Aston Brook Street Birmingham Owner s Name Address Car
41. ing nut F so as to slightly draw the cover in the direction of the worm Care must be taken that the worm wheel is not brought too tight PM koe i es orit NIE the steering exceedingly hard and stiff Having ma adjustment be sure and up the re nts DJ and lock them with the locking plates Should it be desirable to remove the steering worm wheel from the casing itia only necessary to elacken the adjusting nol F and remove the three nuts D when the cover E can be withdrawn together with the worm wheel and steeringarm The steering column with control rods can be withdrawn by first removing control levers K and nut L then slackening locking fog clamping bolt and unscrewing the adjustments again should be left to an Austin agent to effect Re lining the Brakes re line the Ehe is necessary first to VS M and then the brake drum unscrewing the three Se nA whieh secure it he hub and before the shoes can be removed for re lining the hub and wheel bearing must be extracted this a special hub extractor is supplied the tool kit Rear Brakes For the rear wheel brakes see illustration on page 32 remove the axle shaft nut having first taken out the split pint and extract the outer portion of the hub by screwing the extractor on the screwed end and turning the extractor bolt which bears the end of the axle shaft Remove the key
42. ion it is essential to keep the tappets correctly adjusted To make this adjustment first remove the valve cover turn the engine slowly round with the ing crank Watch each valve open in turn and note the point at which it stops descending Now turn the engine half a revolution further to make sure that the cam is well away from the tappet There should now be between the valve stem A and tappet screw a clearance equal to the thick ness of the thin blade of the tappet clear ance gauge If the is other it can be by loosen ing the lock nut and raising or lower ing screw B being careful to tighten up lock nut when the adjustment is completed special spanner is provided in the too Kit for this operation Check this adjustment when the engine is warm Cleaning Combustion Chamber To secure the maximum efficiency from the engine it is necessary to remove the carbon deposit that will have formed on the surfaces of the combustion chamber This should be done after about 2 000 miles running When the cylinder head is off it may be advisable to take this opportunity of grinding in the valves although this will need jns time for the work to be carried n any it is recommended that after about 4 000 miles the work of grinding in the valves should be undertaken First drain off the water through cock under the radiator Detach the top water tube from the head Disconnect the high tension wires from t
43. is provided 4 gallons gear driven dynamo with aecumulators and dimer Two bucket seats for driver and passenger that for the diver being adjustable and that for the passenger bet hinged to allow entrance to the rear seat Rear sea carry two or three children Ample tool accommodation ander seate Spare wheel and tyre cared on back cl care Hood double screen and full side sereene thove over the doors open with them Electric horn and speedometer automatic windscreen wiper and license holder WORKMANSHIP AND MATERIALS Austin quality INSURANCE Special Insurance has been arranged at 8 188 04 per annum except for cars garaged within 10 mies of towne with population exceeding 250000 for which cars the annual peemiom ie 1 M 6 CHASSIS aI gt z a 2 THE The NEW CAR N taking possession of a new car i i O nes is advisable to give general examination to sec that alle compete and Make sure that the toolkit is complete checl according to the let given on page Du E you are not already familiar with Austin cars we s recommend that this handbook be carefully m Before running see that the is supplied with fuel and water and that the engine and gearbox have the necessary uantities of The battery should contain the required amount of acid For quantities of oil and acid see secti Lubrication and Equipment
44. is often A When using the brake tch in disengaging it at the last moment car The driving seat of the Austin Seven Position and this convenience should be va 28 to obtain the greatest comfort is adjustable for advantage of so 0 CHANGING A WHEEL The Spare Wheel HEN it becomes necessary to change a wheel because of a puncture or for any other cause the spare wheel must be lifted from its bracket at the rear of the car to which it is fastened by three wheel nuts in the same way as wheels are attached to the hub It is important to have the car on level ground With the wheel brace the three nuts A of the wheel to be removed should be slightly slackened but only enough for them to unscrew freely later The wheel is then jacked up Ifitis a rear wheel the jack should be placed under the rear spring anchor age on the axle or if the car is unavoidably on uneven groun it may be advisable to block the jack up to increase its lift To detach the wheel from the hub loosen the three nuts A by means of the brace it is not necessary to remove them entirely Now pull the wheel outwards about and turn itso that the large hole will pass over the nut For a front wheel this can be done more easily if the hand brake is on so that the hub cannot tum With a back wheel if the brake cable is pulled down to put on the brake whileithe wheel is being detached the movement will be s The wheel
45. ixed near the top of the division on the side screens clear the iron framework of the hood Now push the hood straight up and back from the front and break the joint of the iron frame work see illustra tion The picture shows very clearly the commence ment of the eoncertina movement which begins the actual lowering of the hood The hood vill then collapse towards the back bf the car Pull the folds out until they lie in one big fold over the back of the car see below AS Now fold them back carefully seeing that the edges are evenly placed turn them in either nis illustration below or under and put the cover in over The cover is secured by a strap which is brought up inside the ron frame work passesthroug the slot A in the cover thence down ward see illustra tion on next page through the eye B in the iron bracket pulled tight and buckled at C Raising the Hood To raise the hood remove the cover and unfold the hood terial Lift the top hood stick vertically holding the metal idestrip of the hood frame near the hinge If the front hood stick is then pushed forward and the metal strips are pulled back to straighten the hinge the whole hood ean be dropped forward and secured in position to the windscreen Care of the Hood Care should be taken in folding down the hood to sec that the original folds are used Should the car have been used in wet w
46. lve guide itis necessary to lilt the cylinder block The three nuts on the magneto side are easily removed also the three barrel nuts on the valve side can be removed without difficulty For access to the nut at the front of the cylinder block the dynamo and casing with the fan bracket and fan must be lifted clear The casing is secured by four set screws The one under the dynamo itself is not very acc also the one nearest the cylinder block requires the special small spanner supplied in the tool kit which can be turned 30 and then refitted to the nut With the casing removed the front cylinder block nut i accessible For access to the rear nut of the block it is advisable to lift the starter motor and casing from its mounting over the flywheel This is done by removing the two set screws and lifting the casing clear vertically off its positioning dowel The cylinder block can be lifted when the lower hose connection has been removed When refitting the starter motor casing the larger set screw is required at the nearside of the casing vere is no joint washer between this casing and the crankcase but paper joint washers are used between the cylinder block and the crankcase also under the dynamo casing These joints must be oil tight When refitting the cylinder block necessary to use sleeves on the pistons to compress the rings These piston ring sleeves are among the extra tools obtainable from the Service Departme
47. ly note the riding qualities of the car and if the spring action seems too Feared or stiff reduce the frictional resistance of the shock by turning the centre adjusting nut to the left or counter clockwise after slackening the lock nut If the spring action seems too free increase the frictional resistance by fuming the adjusting mut to the right or clockwise After adjusting tighten the lock nut Careful adjustment in this manner will produce an ideal condition The spring will still have the required amount of lexibiity for easy riding but spring vibration will be reduced tea imum and violent rebound effectively eliminated The rear Austin shock absorbers do not require adjustment Cleaning the Shock Absorbers Periodically especially in wet weather when m throw on to them large end ofthe shock Rc be taken by withdrawing the centre bolt and thoroughly cleansed The ene pin end washer should smear of grease used with discretion on riction 1 Surtees wil prevent he entry of moisture E die shock absorbers becoming and opea this precaution is not adopted the sl im e eid pins and ues af the end ofthe me which wil ce Rd year In addition reat strain is imposed o1 e Wr risen Clutch Slip Some drivers are inclined the ch P inclined to use the clutch instead ol changing down iw lower gent particularly when they aat at of a hill and it is only necessary t
48. n Icxrrion First examine the wires and see that the sparking plugs are connected Then test the gap of the plug points by means of the thick end of the gauge provided in the tool kit Ifthe points are dirty clean them before replacing the plug For fuller details on the ignition system see page 20 ARBURATION The slow running jet may be stopped up ora main jet choked Blow them out with a tyre pump For fuller details about the carburetter see page 15 The engine should never be allowed to run at high speeds for the first 300 miles D CONTROL OF THE Setting of Control Levers Changing Gear Double declutching will b changes declutching will be found the best method of ge Gang the Austin Seven and should ot hoe pa twill be understood that when changing we th foot Taken off the accelerator pedal and that when d foa lower gearit should be held down The ear shold The catch below the kno Allow the revere gear Ce Always change gez gear early on a hill never allow the e into a lower one when the has nearly stopped Keep the foot off the elute pedal except in heavy ps fen then do not allow the weight of the foot to be taken by the pedal The slipping the caused by this ractice heats pue ts and wears it When descending a lon hill supplement the action ef the foot brake at intervals by the use of the hand brake for brief periods It
49. nly dealing with No 1 Now turn the flywheel until this line is 1 in to If in before the top centre his is the position at which the spark should take place at the sparking plug when the ignition is fully advanced Now fully advance the ignition lever at the top of the steering wheel Disconnect the contact breaker control and magneto strap draw back magneto to disconnect the coupling Turn the spindle by hand until the carbon brush of the dis tributor is on the segment corresponding to the magneto lead of No cylinder and carefully leave it that the points of the contact breaker are just commencing to separate This is the position where the spark takes place Now hold the rubber disc in between the driving shaft and magneto and slide the magneto towards its place without having the spindle leaving just sufficient room for the to be turned round without being in engagement either side Turn the rubber until the teeth on each side come exactly opposite those they mesh with Then push the magneto up into place Checking the Timing If nothing has moved while this latter part of the operation has been taking place the magneto should be correctly timed but as it is extremely difficult without making use of the fine adjustment to do this the timing should now be checked Turn the engine round two revolutions bringing No 1 piston into its firing position again and set the line of the
50. nt On the clamping bolt of the steering arm jaw being slackened the jaw can be screwed further on or off the gross tube for so many complete turns as may be necessary This movement will enable the correct adjustment to be attain then the clamping bolt is re tightened On refitting the cross tube lever to the axle tighten the nut securely with the spring washer under This aa well as the steering adjustment described below is one of the adjustments which it ts advisable to leave to the Austin agent to effect who is properly equipped for the work Adjustment of Steering If alter continual use slackness should be felt in the steering two adjustments are available To take up the play in the column loosen the nut which tightens the bracket supporting th outer column to the instrument board unscrew locking peg A and clamping bolt B then turn the sleeve C with the special spanner provided far the purpove mead tha play has been removed Do not screw the sleeve in too tight the steering will then b come stiff Having adjusted the sleeve correctly screw in the locking peg so that it enters one of the slots of the sleeve tighten up the clamping bolt and the supporting bracket to the instrument board To take up the clearance between the worm and worm wheel due to wear remove the locking plates and slacken the three nuts D holding the cover E to the worm casing then turn adjust
51. nt of the Austin Motor Co Ltd Adjusting the Brakes The hand brake operates on the front wheels and the foot brake on the rear wheels They require adjusting when the hand lever be pulled right back to the full travel on the rack and when the pedal can be pushed nearly to the floor board without either brake holding the wheels The car should never be taken out when in this condition but should be attended to at once E Access to the handbrake mechanism is through the small cover in the centre of the car just behind the gearbox To adjust the hahd brake pull the lever on about one third or to suit drivers reach of the total travel provided by the rack Now unlock the nut B and screw up the brake adjusting screw A until the shoes are hard on the drum If the brake shoes do not then rub on the drum when the lever is right forward the adjustment is correct See that the screw is locked again by nut B To adjust the foot brake Under the car and approximately under the foot controls is a wing nut This must be screwed towards the front of the engine until the brakes go full on when the pedal is depressed about Zin the is rear wheel drums in which they operate Rear Brake Compensation For compensating the rear brakes which may be necessary after re lining the shoes an individual adjustment for each of the rear brake cable
52. o change down for a few yards Foot pressure is applied 1 the clutch create certain amount of slip see pae 10 This high polishes the frictional surfaces and will eventually be the mo Ld slip finally in addition to burning out the ipee soe Sometimes clutch slip is due to oil Nc to penetrating o the clutch from e engine of suitor ea Eus h of UM ud pages 28 x 29 1 If the inspection he clutch casing is removed petrol can be syringe on the htc plat to wash of the oll GU RM te frictional characteristics The petrol and oil will drain through a hole in the casing under the flywheel v When injecting the petrol have the engine ti she pate ts propedly wathed and the petal and al ae gin an opportunity to drain away also push the clutch and let it in by the pedal so that the petrol is given washing act not replace the inspectior late until have had s ffcient time to pian gene After this operation it is advisable to lubri withdrawal collar page 29 as the m E may have been removed by the petrol There is no adjustment necessary for the clutch Fan Adjustment Release the clamping pin nut on the fan Sara the ela Sn ete ane necessary tension is obtained in the fan belt 47 CARE OF THE HOOD ing the Hood the hood first release it from the pillars of the windscreen push the side screens inwards so that the rubber buffers f
53. ontinually ndbool included in the Austin Seven Schedule fs Repairs which quotes over ninety ries for repairs to the Austin Sever Owners will find it to t deat vo have their car and epu es Ur agente at these standard prices by Prime epring shackles stering and brake and other Dino bat including rear axle universal joint steering box and front hubs aking down cleaning and gre Telit tl wich new bolus and bus Dismantling shock absorbers then cleaning and adjusting and Adjusting and compensating brakes Relining brakes front or rear Removing cylinder head decarbor valves adjusting tappets and tuni bes ising and grinding in engine on the linder head and or gasket valve tappets cleaning and adjusting contact fate distributor and sparking plugs cleaning out carb et Rin chamber cleaning oil filler examining with new Removia m car ining and adjusting aan d and battery Sith acid as required Tracking up front wheels by adjusting length of cross steering tube Adjusting mesh of steering worm and wheel 9 The IGNITION SYSTEM HE following remarks are common to alll magnetos other than the ML particulars of which are given overleaf The magneto requires very little attention and the only adjustment necessary is that of the gap between the platinum points A and B of
54. ost be threatened Glycerine mixed with the water will reduce its freezing point by several degrees It should be added in the proportion of 15 to 20 In cold weather use the Austin radiator muff fo prevent the gradual formation of deposits in the cooling system with consequent impeding of the circulation the use of Bard water should be avoided Rain water syphoned from the top of the barrel where it is clean should be used or failing that water that has been boiled Causes of Overheating Overheating may be attributed to one or more of the following Slack fan belt the belt can be tightened by turning the fan spindle in its bracket alter loosening the clamping nuts Excessive carbon deposit in cylinders See Running Adjustments Running with ignition too far retarded Using oil of poor quality or lack of in the reservoir See Engine Lubrication Partial choking of the jets See Engine Lubrication Igproper carburetter adjustment giving a mixture too rich of too weak See The Carburetter Failure of water to circulate because of choked radiator tubes water level below the tops of the radiator tubes or loss of water through leakage from connections Overcooling is almost as bad as overheating If the engine tends to be too cool use a radiator muff or possibly in winter the fan belt can be removed without the engine running too hot 5 The entire circulating
55. over A protecting the cut out and the smaller one the terminals and fuse The cutout automatically cloves the charging circuit as soon as the dynamo voltage rises sufficiently above that of the battery When the dynamo voltage falls below that of the battery the reverse action takes place the cut out opens and thereby prevents the battery from discharging itself through the dynamo The cut out is accurately set before leaving the works and does not need any adjustment and is therefore sealed The cover B protecting the fuse holder and terminals is removed by springing up the retaining wire To it anew fuse tis only necessary to remove the knurled nut place one of the spare fuse strips F over the post and then replace and tighten up the nut Should it be found that the fuse is continually blowing do not use two or more strips to prevent this occurring but have the equipment thoroughly examined to find out the cause of the trouble Battery It is of the utmost importance that the battery receives regular attention as upon its good condition depends the satis factory running of the starting motor and the illumina tion of the lamps Regular Inspection At least once a month the vent plugs in the top of the battery should be removed and the level of the acid solution examined If necessary distilled water which can be obtained at all chemists and most garages s
56. rge of grease once a week Rear Axle For the rear axle attention every 1 200 to 1 500 miles should be sufficient A mixture of yellow grease and engine oil of equal parts should be used It is injected into the axle using the special adapter on the grease gun barrel in place of the telescopic end which screws into the centre casing of the axle when the small plug has been removed with a jy in box spanner The gun handle is screwed down to inject the grease When replacing the plug see that the washer is not omitted Do not inject too much grease at any one time as the felt rings will fail to hold this grease in the axle case and it will then leak through on to the brake drums and prevent them from being effective Rear Universal Joint For the rear universal joint a good quality high speed peace set be ede will remain in the joint longer than the ordinary yellow grease The rear universal joint being of metal must be kept well lubricated at A on account of the movement of the real axle It should be one of the points to have strict attention ip Beeps ld varia ft body ec neal injected Access for greasing here together with the grease nipple B which should receive yellow grease weekly on the end of the torque tube is obtained through the cover C in the floor of the body as shown on the illustration adjoining Brake Gear On each of the rear brakes there is
57. rging switch on the ammeter should give a charge reading of 6 8 amperes more exact figure cannot be given as there a number of factors that cause the dynamo output to vary slightly such as its temperature and the state of charge of the battery When the lamps are switched on with the car still running the metre shows the current in excess of the lamp load which is available for charging the battery If the engine is stopped the following readings on the discharge side of the scale will be given With dim light of driving lamps and tail lamp on about 2 amps With bright light of driving lamps and tail lamp on about 7 amps Should no ammeter reading be indicated when the car is running at say 20 m p h with the charging switch on and the lights off first inspect the fuse to see if it has blown and if necessary replace it Then examine all connections on the dynamo battery cut out and the terminals D A amp the switchbox to see that they are tight and unbroken If the maximum ammeter reading is much below normal when the dynamo is charging when the lamps are or if the needle fluctuates when the car is running steadily a low or intermittent dynamo output can be suspected The dynamo may have been neglected and the trouble may be caused by commutator refer to the dynamo Cut out and Fuse The cut out and fuse are mounted on the same base the larger c
58. rive see sketch consists of a rubber dise E with coupling of the driving shaft on the one side and teeth on the coupling attached to the magneto spindle on the other side Now there are twenty teeth on the driving shaft side F but only nineteen 2n the magneto side therefore by drawing back the magneto disengaging its coupling from the rubber disc then taking the dise away from the teeth on the driving shaft coupling and tuming it the disc round one tooth re engaging with driving coupling and then sliding the magneto back to its place the magneto is only moved relatively to its driving shaft by 1 20th of 1 19th of a revolution or 1 380th We will now proceed to explain the method of timing the magneto Remove all sparking plugs except the front No I and turn the crankshaft by the starting handle until compression is felt This means that No cylinder will be the next one to fire E Remove the starter motor with its casing by unscrewing the securing studs one on each side of the casing and lifting the assembly clear vertically off the locating dowel on the erank case line will be seen on the back of the flywheel marked 4 see illustration on page 29 This line is parallel to the throws of the crankshaft and when this line is vertical it naturally follows that Nos and 4 pistons are at the top of their stroke In this case however we are o
59. s advisable to wipe the dipper rod before taking the reading of the level and the reading should only be taken when the engine is not running and the tar ia on the level ground The main bearings of the engine are of the roller type and the vapour in the crankcase is quite sufficient to lubricate thes The pistons are also lubricated by the oily vapour Lubrication of the big ends is effected by catching oil from the pump fed jets m pockets on the crankshaft webs It is advisable to make sure these jets are always clear and to do so the plugs over the jets see illustration should be oI PASSAGE CONNECTION FRONT CAMSHAFT TO INDICATOR BEARING DELIVERY B Passage m INLET occasionally removed and a piece of stiff wire not above dy in diameter inserted through the jets This prevents foreign matter accumulating in the jets and choking them Gearbox A suitable for the gearbox is the same as that used in the engine but if for any reason another brand of is used it should be of about the same consistency and no thicker otherwise it will not reach all the bearings The depth of the oil should never be less than or more than 24 in It can be measured by rod inserted through the filler plug hole The maximum quantity is approximately pint The correct level should be maintained excess of oil will leak from
60. s is provided screwed end to which the cable is attached screws into the front fork end which secures the cable to the compensating tube lever removing the fork end from the lever a pin secured by split pin holds it the fork be screwed further on or off the screwed cable end to effect the compensation The cable must not be twisted while this is being done To test whether both brakes engage equally at the same time jack up the back axle and with the brake pedal pressed down turn each wheel by hand to judge the braking effect Tracking Adjustment One of the causes of premature tyre wear isthe front wheels being out of track The wheels if they are correctly tracking should not be parallel but should be in closer between the 2 fims in front of the axle than they are behind This difference toc in as it is called allows for working clearances of the steering connections and any slight spring of the parts so that running the wheels are as name parallel as possible If on checking this difference it is greater or smaller than Jin the tracking should be adjusted This is not difficult to effect It is necessary to remove the cross tube lever on the near side from the swivel axle It is secured by a nut on the front of the swivel axle under which there is a spring washer With this done the steering cross tube is freed at the near side for the adjustme
61. s particularly suitable for the woman driver It requires little physical effort to drive and control and for that reason its use enables her to do shopping calls without fatigue visit her friends attend social and other functions or make excursions or trips in any direction in any weather For the same reasons business men find it an excellent vehicle and commercial travellers and others whose occupation compels frequent calls over an extended area have in the little car an embodiment of all they require Calls be made in places where trains trams and buses are infrequent In large establishments where the use of a big car for short rans with messages on shopping emergency calls at short notice as in case of sudden illness would be found costly and inconvenient the Seven has proved to be a splendid tender saving time and money As 45 to 50 miles per gallon is the average petrol consump tion the cost of transit is below the cost of fares on any public conveyance and in this particular the Austin Seven no rival Its speed economy reliability and road holding qualities have been admitted beyond dispute Thousands of motorists have had their first experiences on Seven thousands more will follow them It has successfully passed through years of severe use and trial and emerged a really successful and popular favourite Tbe Seven Saloon ITS LEADING FEATURES
62. starting motor switch usually it can be released by putting the gear lever into top gear and moving the car bodily backward and forward lf this plan is ineffectual the starter will have to be dismantled Never use the starting motor to propel the car as it throws too severe a strain on the battery and the starting motor If the engine does not start at the first attempt do not press the starter switch until the engine has come to rest If this precaution not adopted the starter ring teeth on the flywheel cover of the starter pinion teeth may be damaged Switchbox The sth box houses two switches controling the lighting and el jing circuits and a centre zero ammeter i meted ees oft magneto thus obviating the necessity of a separate switch The switch box is provided with an adapter for the Lucas inspection lamp Switch Positions Each switch has three positions Left hand switch 1 off position charging circuit broken and the magneto earthed 2 position magneto operating but dynamo still not charging 3 D position dynamo charging and magneto operating Right hand switch 1 position all lamps 2 S position dim light of driving lamps and tail lamp 3 position bright light of driving lamps and lamp Ammeter Readings When the car is running at about 25 m p h with no lamps in use and the cha
63. t is advisable to lubricate the leaves of the spring with a warm mixture of white lead and tallow in equal parts This can best be applied with a stiff brush the leaves being eased apart by a screwdriver first jack up the car not under the axles nor the radius rods but under the frame to take the weight off the springs The rear of the car can be jacked up one side at a time The best point of the frame at which to apply the jack is each end of the rear cross member At the front as there is only one transverse spring the whole of the car must be lifted and as a safety mea e rear wheels should be scotched to prevent the car running off the jack A short stiff bar is placed across the frame just forward of the engine oil reservoir and behind the spring and the jack lifts the car from the centre of this bar It will be necessary to block the jack up for this work with a wood block to avoid necessitating an excessive lift Front Hubs Remove the road wheel see page 11 Turn the hub until the plug is at the top Screw out the plug and screw in the adapter which is provided in the kit Fill the hub with grease It is important that the hubs are not given too much grease otherwise the brakes will not be effective The handle of the grease gun should not be turned 31 ROAD WHEEL eras AKE DRUM PIN TEER GREASE NIPPLE
64. y be ore etary to slack off the brake adjustment before the brake drum can be replaced Aer reclining the brakes make sure that the hubs contain sufficient lubricant re adjust the brakes and compensate them if necessary see pages 41 and 42 Adjusting Austin Front Shock Absorbers The shock absorber is set to a certain initial tension before itlenves the factory and no change in this adjustment should be necessary fora very considerable time Re adjustment may only become necessary after several thousand miles of travel and should be made only when orig movement seems too free It should be noted that seeing the full benefit of the shock absorbers will not be felt When the car is travelling at low speeds as under these con lions the spring movement is very limited but as the speed their effect becomes more pronounced especially over bad roads when the spring action i most Testing should therefore be carried out at comparatively high average touring speeds and adjustment made to suit these conditions The frictional resistance required to effectively control the action of the springs is comparatively small and care should be ikon not to alter the pressure when adjusting more than is lbsolutely necessary in order to obtain the desired results For fast sporting cars and for road and track raci considerable increase in pressure may of course be required When adjustmnt does become necessary careful
65. ymptoms of which are misfiring or poor starting In a similar manner wipe the surface of the brush holder particularly between the safety gap electrodes Oil the magneto with about eight drops of thin oil through the lubricator in the top every few thousand miles E THE M L MAGNETO The standard magneto je designated ime REA ull information for its upkeep and maintenance are given jn book and for convenience are briefly summarised below and Maintenance Care a with all bearings with the exception af the distabutor shaft The ball bearings are pacte dn ing point grease and require no further lubrication shaft should be lubricated every 1000 miles with afew spots of thin at A Do mof use a heavy such amp Sngine or cylinder Sewing machine oil is very suitable Ponts Pecan Na The Contact Breaker The contact breaker should be examined See at the points D E separate the correct distance when opens ves ited othe magne supplied with each magneto After adjusting mal the point D is property locked the Should the cam or fibre block appear dry and dusty of should there be any tendency to squeak when the engin i Tunning slowly apply a touch of oil to the cam surface patel slowly OPP end of match stalk Do not give any Dicens as it may get on th

ustin 19a 28. on of date. Engine agneto hasers ith Book the Coil

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