1972 Service Manual
Contents
1. B RUTANZA SNOWMOBILE SERVICE MANUAL TABLE OF CONTENTS 1973 BRUT SNOWMOBILE BRUT S LIQUID COOLED ENGINE BRUT SPECIFICATIONS ENGINE TIMING BRUT SERVICE TOOL LISTING BRUT SNOWMOBILE CUTAWAY 1972 LC44 ELECTRICAL SCHEMATIC 1973 LC29 ELECTRICAL SCHEMATIC 1973 LC44 ELECTRICAL SCHEMATIC SUSPENSION DRIVE SHAFT REMOVAL INVOLUTE DRIVE SPROCKET REMOVAL CLUTCH REMOVAL DRIVE INSTALLATION BRAKE INSTALLATION SUSPENSION INSTALLATION ENGINE REMOVAL ENGINE DISASSEMBLY ENGINE ASSEMBLY PISTON RING INSTALLATION THROTTLE ROD ADJUSTMENT CHOKE LINKAGE ADJUSTMENT STEERING ADJUSTMENT AND SKI ALIGNMENT oo fF WO QU amp W 2 O a N co ENGINE TIMING SERVICING DRIVEN CLUTCH SERVICING DRIVE CLUTCH SKAG REPLACEMENT HEADLIGHT REPLACEMENT HEADLIGHT ADJUSTMENT TAILLIGHT BRAKE LIGHT REPLACEMENT BRAKE ADJUSTMENT DRIVE BELT REPLACEMENT CLUTCH ALIGNMENT RIDE ADJUSTMENT SPRING TENSION SHOCK TENSION TRACK ADJUSTMENT AND ALIGNMENT DRIVE CHAIN ADJUSTMENT COOLING SYSTEM LUBRICATION FUEL MIXTURE GASOLINE OIL FUEL MIXING RATIO MIXING INSTRUCTIONS 20 20 21 21 21 21 21 21 22 22 22 23 23 24 24 24 24 24 24 24 1973 BRUT SNOWMOBILE BRUT S LIQUID COOLED BROOTEN ENGINE Page 2 BRUT SPECIFICATIONS Fuel capacity US LAGGY A Yn dew v a 102 Spark plug gap Urt t wah 017 020 Height w windshield2. against end of crankshaft and pull clutch by tightening puller against crankshaft DRIVE INSTALLATION Lock collar must be on flangette side of shaft with Slip snap ring on top drive sprocket in chaincase to hold eccentric portion facing tunnel before installation it in position Install chain tightener assembly and Before installing chaincase be sure snap ring is on tighten chain so there is 1 2 deflection in chain shaft With machine laying on left side fit track into locking nut on tightener bolt Check O ring seal on tunnel Then push driveshaft into chaincase hole chaincase cover and install if O K Be careful not to and back through spherical bearing mounted on damage jackshaft seal when installing chaincase cover the flangette Holding drive sprockets as close to Go back to driveshaft inside tunnel and slide lock collar center of tunnel as possible slide chaincase onto into position next to flangette bearing Turn collar lock drive shaft Snug chaincase tightly up against tunnel with punch and tighten with allen wrench Slide top sprocket spacer over spline and install sprockets and chain Screw bolt in driveshaft to hold chain sprocket on and center involute drive T sprockets Page 8 BRAKE INSTALLATION Place inner brake puck in chaincase cover Install brake disc then brake assembly Make sure actuating pin points toward actuating lever p SUSPENSION INSTALLATION With track an
3. the six 6 12mm head bolts on rear pair of motor mounts Lift engine and drain coolant Be careful not to let engine drop and break the plugs during removal Page 11 de ENGINE DISASSEMBLY Remove the 1 2 nuts holding down carbs Next remove the 12mm head nuts and one bolt in crankcase holding on muffler Remove 10mm head nuts holding both water manifolds in place then remove manifold after disconnecting coolant bypass hose Remove the three 3 12mm head bolts holding water pump mounting brackets to end cylinder then remove water pump and brackets Remove motor mounts on top and bottom of engine Remove 12mm head nuts holding heads on then remove heads while prying up gaskets with flat edge Remove 14mm nuts holding down cylinders and slide cylinders off pistons With snap ring pliers remove snap ring holding piston pin in position Don t apply excessive side pressure on connecting rod while removing piston pin Remove wrist pin bearing and spacers Page 12 Remove 10mm head bolts holding on recoil and take off recoil Remove 10mm head bolts holding on belt pulley Remove 10mm head bolts holding on dust cover Remove 30mm head nut on flywheel and install 10mm head bolts furnished with flywheel puller and a 27mm socket for the flywheel puller and remove rotor Remove Phillips head screws on special seal on flywheel side and remove seal Bend lock tabs back on 12mm head bolts holding seal plate
4. torque 10mm head nuts to 60 inch Ibs LT With brackets mounted on water pump slide belt over pump pulley and screw brackets onto cylinder with three 3 12mm head bolts Tighten belt with tightener bracket until you reach 1 2 deflection in belt Install water inlet hose and bypass hose and tighten clamps Fit exhaust gasket on manifold and install muffler with 12mm head nuts Install the two carbs closest to clutch Throttle bracket fits under carb nearest clutch The 1 4 spacer fits under two carbs nearest water pump Slide linkage rods through choke tie downs on the two Install two 2 lower engine mounts with four 4 carbs closest to flywheel and loop cable around carb 14mm head bolts closest to clutch Replace tie down screw after looping Set engine in chassis and install six 6 12mm head bolts over linkage swivel Mount choke cable on choke in two 2 rear engine mounts and two 2 7 16 bolts cable bracket and tighten securely Pull choke and on front mounts Set steering post in position and throttle cables through linkage swivel and tighten tie fasten all bolts Install third carb next to water pump down screw j Install throttle cable on cable bracket mounted toward center of threads Page 19 THROTTLE ROD ADJUSTMENT Loosen linkage rod tie down screws on the two carburetors closest to clutch Squeezing the throttle the linkage rod should move freely inside tie downs without activating
5. 35 1 2 Point gap LC29only 012 017 II a uu Qe rd a oe rk ee TAS PEINE Engine models 294cc liquid cooled Brooten twin cylinder TRACK width Ion 0 ae a e ae ro A Engine models 439ccliquid cooled Brooten three cylinder Approximate weight LC44 395lbs dry Approximate weight LC29 355 Ibs dry ENGINE TIMING LC44 3 5mm BTDC fully advanced LC29 3 5mm BTDC fully advanced 5mm fully retarded BRUT SERVICE TOOL LISTING Clutch puller Part No 23112 11 Clutch alignment tool Part No 23122 10 Flywheel puller Part No 23123 10 BRUT SNOWMOBILE CUTAWAY JACK SHAFT DRIVEN CLUTCH DRIVE CHAIN AAA m i CARBURETORS SPRING ADJUSTMENT DRIVE CLUTCH ROD END 7 b yw 4 2 OE FRONT IDLER ADJUSTMENT NUTS WHEELS DRIVE SHAFT TIE DOWN SUSPENSION SLIDE TRACK INVOLUTE SPROCKET ROD NUTS Page 3 EST BEO _ ENGINE Iu ve L cou LIGHT SWITCH TAIL LIGHT TACHOMETER LYELLow BLACK BRowh SPEEDOMETER ELECTRICAL SCHEMATIC 1972 BRUT 440 HEADLIGHT YELLOW YELLOW SELLA BLACHE BROWJP JA SPEEDOMETER VOLTAGE REGULATOR ELECTRICAL SCHEMATIC 1973 BRUT 294 9 abed 4 Bee LIGHT SWITCH IGNITION SWITCH BRAKE SWITCH ENGINE TACHOMETER VOLTAGE LL W BLAcK R
6. EGULATOR R PEEDOMETER ELECTRICAL SCHEMATIC 1973 BRUT 440 DRIVE SHAFT REMOVAL To remove drive shaft the chain case must be removed and the suspension must be removed On the left side of the machine is a locking collar positioned on the spherical bearing in the flangette Photo at right Loosen allen screw turn collar opposite way it was installed Note punch mark in locking hole Slide collar over shaft then push shaft into chain case hole and pull out bottom SUSPENSION gt Remove suspension To remove suspension remove the four 4 3 8 locking bolts mounting suspension to chassis Plug air bleed hole in gas cap turn machine on to one side Then pull out suspension Chaincase assembly must be removed before drive shaft can be removed Two photos below Remove chain case drive elements Remove chain by removing snap ring on upper sprocket and bolt on lower sprocket Remove chain tensioner by backing out tightener bolt Page 7 INVOLUTE DRIVE SPROCKET REMOVAL With drive shaft removed remove the involute sprocket With long 1 4 punch pound out 5 16 roll pin from shaft Drive sprocket should slide off CLUTCH REMOVAL Remove three 3 Phillips head screws holding bumper and hood extrusion onto nosepan on left side of machine only Remove 5 8 head clutch bolt then special large nut on clutch Thread clutch puller into threads of special end nut Bearing on end of puller will press
7. ace of the large diameter driven clutch Grab moveable face and rotate backwards then pull belt down into driven clutch V Lift and slide belt off stationary sheave of driven clutch When loose from driven unit remove from drive or small diameter clutch Reminder driven clutch should be pulled open completely Installation Mount belt on drive clutch Grab moveable face of driven clutch with both hands on opposite sides of rim diameter and turn moveable face backwards then push to compress the clutch spring With clutch completely open push belt down between sheaves and slide belt over stationary sheave CLUTCH ALIGNMENT Clutch alignment was set at the factory and checked by your dealer during pre delivery service If you are having unnecessary belt trouble such as a lot of wear on the edges your dealer should check alignment Offset from drive to driven clutch is 5 16 inch Adjust by adding or subtracting washers on shaft under driven clutch RIDE ADJUSTMENT SPRING TENSION Increasing or decreasing the spring tension by adjusting the eye bolt at the front of the spring will alter the firmness of the suspension When adjusting spring tension always have tension on friction shocks completely released Shock adjust ment will overcome severe machine bottoming Adjust the eye bolt so that 1 1 2 2 inches of thread shows past the nut for a normal 175 Ib rider Increase the amount of thread showing for a heavier p
8. d driveshaft installed you can now install suspension Raise machine rear approximately 30 off ground on secure stand Slide suspension into track Line up front two 2 mounting bolts insert and tighten Slide a 2 x2 or 2 x4 block under track positioned just behind second set of front idler wheels Drop rear of machine down Push down or up on machine rear while holding rear suspension mounting shaft until shaft is in line to insert mounting bolts Tighten bolts and align suspension See 5 23 Page 9 ENGINE REMOVAL Loosen linkage rod tie down screws on choke and throttle on carb next to water pump Loosen cable tie down screw on choke cable housing Remove throttle cable at throttle lever next to handle grip Disconnect fuel supply and return line at carburetor Disconnect impulse line on carb next to water pump Remove 3 8 nut holding tie rod ends to steering post frog Remove two 2 1 4 nuts at upper steering yoke Lift steering post away from engine compartment Disconnect CDI unit lead to engine Disconnect the two 2 yellow lighting wires and black ground wire leading from stator unit Disconnect spark plug leads Page 10 Remove cotter key at base of steering post Disconnect temperature gauge line from engine and plug hole with small cork Remove coolant hoses and plug holes with corks so coolant does not spill Remove 7 16 lock nuts holding front motor mounts to chassis Remove
9. e fittings Place wooden block under piston so it sits solid on crankcase With ring compressor over piston rings slide cylinder onto piston Caution Ring ends will catch in transfer ports so you must press them in your fingers Do not force cylinders on When rings do not catch cylinder will slide on with little effort With cylinders in place tighten four 4 14mm head nuts on each cylinder securely zz LC29 Mount stator plate in center of slots Grease and install due on recoil side Install flywheel and torque to 60 ft Ibs Install stator with three 3 Phillips head screws after aligning installing holes with machined holes in crankcase Do not force stator in it should slide in by hand snugly Do not rotate stator holes must line up Page 18 LC29 Coat breaker cam with thin coat of grease Connect timing equipment light buzzer or ohm meter to white primary lead adjust point gap to get correct timing Point gap should be between 011 and 017 rotor on Key Gaio crankshaft Torque 30mm nut to 55 ft Ibs Install dust cover next to rotor stator assembly with 10mm head cap screws On 1972 models spacer ring must be in place before installing lower belt pulley With ring in posi tion install pulley with 10mm head cap screws Slide belt over pulley and install recoil and spacer ring 1972 only on crankcase Slide outlet water pipe on manifold nd
10. er until clutch comes off Holding moveable face of clutch in both hands and puller facing floor tap puller against a firm object It should separate from stationary hub Remove puller and clutch will come apart Inspect clutch arms to make sure they are not sticking Clean and examine all parts Replace if worn When assembling clutch note balance lines on cover and moveable face They must line up after assembly g SKAG REPLACEMENT The skag is a wear bar attached to each ski bottom to aid in turning and prevent wear on actual ski blade Check con dition of skag wear often and replace skags when worn down near ski To replace remove nut holding skag in place With a solid bar bend skag outward until bolt is free from its ski hole Place a 1 piece of wood between skag and ski blade just behind front ski bolt With hammer tap on wooden block forcing skag forward until back pops out of slot With new skag push front sloped end into front ski slot with 1 wood en block positioned in front of rear skag bolt While guiding rear of skag toward rear skag hole by hand tap on wooden block to drive skag backwards When skag bolts line up direct ly with holes use pry bar to remove wooden block and skag will snap into place Then replace lock nuts and skag bolts HEADLIGHT REPLACEMENT To replace headlight start by removing wiring plug on back of lens With fingers remove wire spring holding lens down Install new le
11. erson SHOCK TENSION After adjusting spring tension to fit rider adjust friction shocks by tightening castellated nut This should give you the overall ride you want Page 22 TRACK ADJUSTMENT AND ALIGNMENT To work on track lift rear of machine and set on secure stand about 4 to 8 off the floor To make track adjust ments 1 Loosen rear idler wheel tie down rod A allowing the idler wheels to turn freely as adjustments are being made To check track alignment start engine with machine on stand and turn track over slowly Caution do not run track fast when checking alignment and clear all tools away from track and suspension areas before starting engine After adjustments have been made stop ma chine and shut off engine Measure distance from rear of suspension upright E to rear of adjusting nut C 2 Break lock nuts B away from adjustment nuts C on on both sides Measurements should be equal If both sides of suspension allowing you to move the idler there is misalignment side of track closest to tunnel shaft and wheels forward and back for adjustment must be tightened If track is already very tight then 3 Correct track drop is 1 1 2 away from the slide frame adjusting nut on track side farthest from tunnel must be D to inside sliding part of track Do not pull down on track to get this measurement and make sure that track is free of ice and snow or other weight Correct
12. nder flywheel then dial indicator should read 3 5mm or 138 at correct timing setting Check point gap with feeler gauge and make sure point gap is within specs of 012 and 017 If not stator plate must be adjusted accordingly to set proper specs When timing is correct on flywheel cylinder next set timing on cylinder next to clutch Disconnect white lead to coil Adjust timing by changing point gap only If stator plate is moved flywheel cylinder must be retimed SERVICING DRIVEN CLUTCH Position removed clutch with fixed face down Rotate moveable sheave approximately 35 clockwise and hold steady Press stationary helix down to clear key and rotate so key holds helix down Remove snap ring then rotate helix into snap ring groove Hold firmly to prevent sudden spring release Clean and examine all parts Replace if worn Slide moveable face onto hub replace key Engage spring with anchor point in torque bracket and anchor point in moveable face Compress spring until 1 16 to 1 8 shows between ramps Rotate moveable face 1 3 turn or 120 counter clockwise after clock spring tension is taken up Push stationary helix down hub shaft and lock under key Replace snap ring Release stationary helix to seat against snap ring SERVICING DRIVE CLUTCH Disassemble drive clutch by removing special large end nut and installing clutch puller in clutch Grab moveable face with cover assembly firmly with one hand and turn pull
13. ns by first positioning it then reinsert wire spring and plug in electrical plug Replace with dual element 12 volt GE4454 bulb or equivalent HEADLIGHT ADJUSTMENT Four headlight adjustment screws enable you to adjust the beam up down and to either side Adjustments should be made for your particular driving condition Caution It is easy to overdrive your headlight at night Always use common sense and a safe speed at night Drive especially carefully on unfamiliar land TAILLIGHT BRAKE LIGHT REPLACEMENT To replace taillight first remove lens screws Take off lens and replace bulb with a 12 volt 1157 bulb Page 21 BRAKE ADJUSTMENT Your Brut caliper disc brakes were preset at the factor and checked by your dealer in his setup procedure No adjust ment should be necessary for the first 100 miles After this break in period brakes should be checked each day of opera tion for approximately 3 4 free travel of the brake handle There are two methods to adjust brakes in order to move disc brake puck closer to disc In first loosen both 12 hex head nuts on cable housing mount F p 23 to adjust To tighten brake raise cable housing to loosen brake lower cable housing In other method remove cotter pin on castellated nut G p 23 and tighten nut until puck presses against disc and there is about brake handle play DRIVE BELT REPLACEMENT Removal Squeeze the brake so brake pressure will hold the stationary f
14. on end of crankshaft remove bolts then seal plate Now you can disassemble Remove eighteen 18 12mm head bolts and two 2 14 mm head bolts with plastic hammer tap on one half of crankcase holding the other half in one hand When case separates shaft can x be removed s PET EA TA Y e Page 13 ENGINE ASSEMBLY Lay crankcase lower half on workbench Place crankshaft in crankcase Install rotor key in crankcase Grease labyrinth seal and oil bearings Install spacer ring next to ball bearings flywheel side Smear gasket sealer on upper joining half of crankcase and fit onto lower half carefully ERE 2 4 14 we Tap clutch end of shaft with plastic hammer to position shaft correctly in case Install eighteen 18 12mm head bolts and two 2 14mm head bolts and torque tighten according to pattern in illustration below Torque 14mm heads to 25 ft Ibs Torque 12mm heads to 18 ft Ibs r With depth micrometer measure from seal plate mounting surface on case to outer race of shaft ball bearing Choose from three 3 thicknesses of gaskets to place under seal plate If micrometer measures from 091 and up use 2mm 008 if it measures from i to 091 use 3mm 012 if it measures from 080 and down use 5mm 020 Install correct gasket and seal plate tend lock
15. sually results in a gummy substance that can plug carburetor jets OIL Use a good grade of two cycle engine oil which states on the label that it is blended for snowmobiles If your spark plugs are fouling a lot there is a good chance that you are not using a good oil for your Brooten engine FUEL MIXING RATIO Mix 20 parts of gasoline to 1 part of oil a 20 1 ratio which is 5 gallons of gas to 1 quart of oil Too much oil will cause plug fouling smoking and excessive carbon formation Too little oil can cause engine overheating with resulting piston seizure or engine bearing failure MIXING INSTRUCTIONS Never mix gasoline with oil in your snowmobile s fuel tank Use a clean container Fill it about half full of gas Add the right amount of oil to fill the container with mixed fuel Shake the mix well then add the remaining amount of gas to fill the container with mixed fuel When refueling your snowmobile use a funnel with a fine screen to prevent spilling and entry of dirt and water into the tank Always reshake the fuel container if it s been sitting around for even a few hours to prevent oil from settling out Page 24
16. t that is front of skis are spread 1 4 farther apart than rear If you do not have correct toe out loosen jam nuts on tie rod that has not been adjusted and turn whichever way necessary to get 1 4 toe out When steering is adjusted make sure all jam nuts and other nuts and bolts are tight ENGINE TIMING LC44 The LC440 engine is equipped with capacitor discharge ignition CDI and timing is set in the factory at 3 5MM BTDC in fully advanced position Timing cannot be adjusted on this system and should never change LC29 The LC294 engine is equipped with flywheel magneto ignition system Timing is factory set at 3 bmm BTDC in fully advanced position and 6mm fully retarded position To set timing disconnect red wire leading from ignition points to ignition coil on cylinder next to flywheel Connect one lead of an ohmmeter timing light or timing buzzer on connector leading from points Connect other Page 20 lead to grounding surface on engine Insert a dial indicator in spark plug hole nearest flywheel Position pole shoe adjuster on stator plate in center of slots Note It is best to set correct timing with stator in this position But if timing will not come into specs without having the point gap out of tolerances then pole shoe adjuster on stator must be changed Adjust point gap on points open when dial indicator reads 6mm or 024 in the cam retarded or static position If you have fully advanced cam u
17. tabs over plate bolts Page 15 Install cylinder base gasket Place wrist pin bearing in connecting rod then place piston pin spacers on ends of bearings being careful not to drop them Lubricate wrist pin bearings Slip piston over connecting rod with bearing and spacer Slide piston pin through piston bearing and spacer then install snap rings at both ends of piston pin On 1973 models with the L ring locator pin must face intake port with second ring locator pin between exhaust and transfer port On 1972 models both locator pins are between the transfer ports and the exhaust port This places locating pins for piston rings so rings do not catch in ports Put one snap ring on each piston before installing on rod so you don t have to squeeze on between two pistons Page 16 PISTON RING INSTALLATION Use piston ring pliers to expand ring until it just slips over piston Be sure ring is correctly positioned so ring notch slides into ring locating pin correctly With rings in place set pistons aside F SA M LE nen tu Put water manifold on cylinders and torque 10mm head nuts to 60 inch Ibs Install heads and torque nuts to 17 ft lbs according to the following torque pattern 29 03 Page 17 After pistons have been installed bolt on cylinders in any order Position cylinders so intake port or carb side is toward side of crankcase with impuls
18. tension and alignment should result in an even drop on both sides loosened Adjusting for drop and alignment you should wind up with correct track tension and alignment Track should be run after each adjustment to see if corrected When track adjustment is correct tighten rear idler tie down rod then tighten locking nut against adjusting nut on both sides of suspension being careful not to move adjusting nut After locking all nuts start engine and check adjustment once more DRIVE CHAIN ADJUSTMENT A well adjusted chain has 1 2 deflection A in travel between the two chain case sprockets Chain tension is ad justed by tightener bolt B To adjust chain tension loosen back out lock nut C With an inch lb torque wrench torque tightener bolt to 10 inch Ib then back tightener bolt out 1 2 turn Turn lock nut in and jam against chain case being careful not to further tighten bolt When refitting chain case cover replace lubricating oil Add oil through filler plug D with check plug E removed When oil level reaches check plug level replace plug COOLING SYSTEM Your Brut snowmobile is equipped with an exclusive Brooten liquid cooled two cycle engine Your cooling system requires an Ethylene Glycol based coolant mixed at least 50 50 with water Use more coolant for colder weather If you live in a climate where temperature drops to a 40 F mix coolant to match the temperature Check coolant
19. the throttle shafts on these two carbs Back out all carburetor idle speed screws away from carb throttle shaft stops This will synchronize all butterflies in closed position Grasp linkage rod and push it hard enough so first carb butterfly closes completely The other two carbs should be closed also When they are all closed continue to hold down rod and tighten tie down screws securely Move throttle lever to check synchronization of all throttle shafts If synchronized turn idle speed screws until they just touch shaft stops then make an additional 3 4 turn on each screw You must turn them more for proper idle but this should be done with engine running To set correct idle speed of 1500 rpm you must turn idle screws on all carburetors exactly the same amount CHOKE LINKAGE ADJUSTMENT Make choke adjustments the same as throttle so choke butterflies are all closed when choke cable is pulled Then when choke is pushed in butterflies will open all the way STEERING ADJUSTMENT AND SKI ALIGNMENT Position handle bars so they face straight ahead Adjust either ski so it is also facing straight ahead Adjust ski by loosening jam nuts at both ends of tie rod either direction to align one ski If you cannot align one ski exactly you may have to index steering arm at spindle When both handle bars and one ski are aligned measure distance from one ski to other at points on front and rear ski spring saddles There should be 1 4 toe ou
20. with an anti freeze hydrometer To check coolant level run machine enough to warm up engine Coolant level should be approx imately 1 1 2 below sealing surface of tank Also check system periodically for loose clamps LUBRICATION Your Brut has two lubrication points One is the chain case which has an oil bath reservoir for the drive chain Main tain oil level with No 10 weight nondetergent oil To check correct oil level make sure machine is on level surface Loosen or remove check plug at bottom of chain case If oil does not appear when removed open filler plug at top of chain case and add oil until oil appears at check hole There is a lube fitting on slide suspension frame near front idler wheel Use only Brut Track Suspension Lubricant which has alow melting point This lubricant is not a substitute for no snow conditions and does not permit your Brut to be run for distances without some moisture or snow for normal slide rail suspension lubrication Brutanza has available an optional suspension wheel kit for marginal snow conditions FUEL MIXTURE Your Brooten engine is a two cycle or two stroke snowmobile engine which requires you to mix lubricating oil with the gasoline The carburetor draws this gas oil mixture into the crankcase for the engine to lubricate internal moving parts GASOLINE Use a good grade of clean fresh gasoline Don t use gasoline that has been stored in containers for a long time since storage u
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