©2005 Manufactured exclusively for Horizon
Contents
1. Switch the ignition on again then restart the engine with throttle at a fast idle position and the choke valve set open 4 At this point if the engine still will not start unscrew the spark plug and check its contacts Clean any possible excess fuel i e an indication of engine flooding and screw it in again Further starting should only be done with the throttle at idle position If the plug is dry then probably not enough fuel has been drawn into the carburetor If that is the case check the fuel feed and then return to the instructions given in paragraph 1 After starting and warming the engine for 30 45 seconds adjust as follows Step I Move the throttle to 2 3 high throttle position quickly fast acceleration Then repeat three times if the engine accelerates smoothly go to Step Ill If acceleration is not smooth go on to Step Il Step Il Faulty acceleration and a tendency to quit is usually attributable to a poor fuel mixture in the medium rpm range Stop the engine and recheck the fuel feed the fuel line must not be pinched or broken Restart the engine and test acceleration again If the problem persists adjust the carburetor Open the low speed needle by 5 minutes and retest If acceleration is smooth open the needle by another 3 5 minutes this should be done because the needle was previously set too lean if atmospheric conditions changed recently you may have to re adjust the needle If the engine continues to not a2. Brown Orange Data Out Distance of probe from magnet 0 5 mm Probe Battery Connector A Switch 3 Screw securing the connector in required position To 4 8 Volts 600 1500mAh 90 120mAh at Idle 500mAh 9000 rpm 18Kv 160g 55x50x25mm max 0 5mm 020 7mm 028 10 to 85 deg C BASIC PROBE AND MAGNE T ADJUSTMENT Propeller Driver Direction of Rotation Magnet B dm r jon Magnet A Magnet A position on the driver corresponds to the TOP DEAD CENTER of the piston Magnet B is oriented reversely Basic pre ignition adjustment is given by magnet A Magnet distance is 180 degrees a Magnet A Propeller Driver Magnet B 0302 m o6 0202 0404 266T Part Number Description Part Number Description EV030940101 Crankcase EV030940951 Connecting Rod EV030940202 Front Bearing EV030941001 Crankshaft EV030940203 Rear Bearing EV030941101 Drive Washer EV030940301 Rear Cover EV030941102 Drive Washer s Taper Key EV030940302 Rear Cover Screws Set EV030941103 Propeller Nut EV030940303 Rear Cover 0 Ring EV030941104 Propeller Washer EV030940304 Pressure Nipple EV030941106 Washer EV030940305 Pressure Fitting Gasket 2pcs EV030941305 Carburetor Gasket 2pcs EV030940404 Carburetor Screw 2pcs EV030941306 Washer 2pcs EV030940501 Cylinder Head EV030941307 Carburetor Bolt EV030940502 Cylinder Head Screws 6pcs EV0
3. of the original Mounting the Engine Most model airplane designs make provision for an engine mount It is extremely important that the engine mount be securely mounted to the airplane s firewall and that the engine is securely mounted to the engine mount Follow the instructions included with the airplane for mounting the engine The engine should be fastened in place with 4 screws through a conventional beam mount Use 8x32 screws 26GT or 10x32 35GT If you decided to fasten the engine using a flexible motor mount always choose parts with enough integrity and strength Make sure all screws are tightened and regularly check that they are tight and in good condition Important Air is necessary to cool the engine during operation Make sure that sufficient air circulation through the cowling is provided As a basic reference the outlet area should be 3 5 times the area of the inlet area to provide adequate cooling Throttle Linkage Carefully attach the throttle linkage to the engine using a ball link on the carburetor Make sure that the linkage is free to operate from low throttle to high throttle and confirm that the low throttle setting on the transmitter closes the carburetor butterfly to the low idle position Adjust the length of the pushrod until full throttle opens the carburetor butterfly fully while low throttle low trim completely closes the butterfly Attaching the Fuel Lines Use medium gasoline compatible fu
4. 30941308 Carburetor Nut 2pcs EV030940503 Cylinder Head Gasket 3pcs EV030941310 Thermo Isolation Washer EV030940601 Cylinder Liner EV030941321 Carburetor Flange EV030940650 Cylinder Piston Assembly EV030941403 Spark Plug Washer EV030940701 Piston EV030941404 Locking Screw EV030940702 Piston Ring EV030943224 Carburetor EV030940801 Piston Pin EV030943306 Spark Plug EV030940802 Piston Pin Retainer 0302 m 04 ator Mas 0202 04 35GT Part Number Description PartNumber Description EV030980101 Crankcase EV030980951 Connecting Rod EV030980202 Front Bearing EV030981001 Crankshaft EV030980203 Rear Bearing EV030981101 Drive Washer EV030980301 Rear Cover EV030941102 Drive Washer s Taper Key EV030980302 Rear Cover Screws Set EV030941103 Propeller Nut EV030980303 Rear Cover 0 Ring EV030941104 Propeller Washer EV030940304 Pressure Nipple EV030941106 Washer EV030940305 Pressure Fitting Gasket 2pcs EV030941305 Carburetor Gasket 2pcs EV030940404 Carburetor Screw 2pcs EV030941306 Washer 2pcs EV030980501 Cylinder Head EV030941307 Carburetor Bolt EV030980502 Cylinder Head Screws 6pcs EVO30941308 Carburetor Nut 2pcs EV030980503 Cylinder Head Gasket 3pcs EV030941310 Thermo Isolation Washer EV030980601 Cylinder Liner EV030941321 Carburetor Flange EV030980650 Cylinder Piston Assembly EV0
5. 30941403 Spark Plug Washer EV030980701 Piston EV030941404 Locking Screw EV030980702 Piston Ring EV030983224 Carburetor EV030980801 Piston Pin EV030983306 Spark Plug EV030980802 Piston Pin Retainer
6. EVOLUTION HORIZ N N H 2005 Manufactured exclusively for Horizon Hobby Inc www horizonhobby com 800 535 5551 7795 Evolution Engines 26GT 35GT Before using this engine please read these instructions carefully Introduction Congratulations on your purchase of the newest and one of the most technically advanced 2 stroke gas model airplane engines in the world Whether you are new to the sport of model aviation or an experienced flyer you will enjoy the features of the new Evolution GT engine Evolution engines are designed to be the most powerful in their class extremely easy to start and operate and provide years of enjoyable service These engines incorporate many unique design features Each feature is designed to ensure success with your new engine This user s guide is intended to provide the basic information required to operate and maintain your Evolution GT engine Important While the Evolution engine is extremely easy to operate if this is your first experience flying a model airplane it is highly recommended that you have the help of an experienced modeler during the first few flights Your local hobby shop or flying club can put you in touch with an experienced pilot in your area Evolution Engines 2 Year Warranty invoice or receipt and a detailed letter j explaining the problems Write your name This Evolution Engines productis address and daytime phone number clearly guaranteed t
7. ccelerate properly open the low speed needle by 10 minutes If the engine s operation does not improve shut it off and check the basic setting restart the engine and test the acceleration If the engine runs correctly go to Step Ill If it continues to not accelerate properly open the low speed needle by another 10 minutes If acceleration is faulty the defect is likely to lie somewhere other than an adjustment Step IIl If the engine accelerates correctly according to the above test set it at idle speed and accelerate to full speed Repeat twice more If the engine functions correctly go to Step IV If it cuts out open the low speed needle by 5 10 minutes more If the engine does not respond to acceleration fast enough keep closing the low speed needle until the engine starts to cut out in response to throttle opening At that point reopen the low speed needle by 5 10 minutes Step IV If the engine reacts correctly set it at full speed If revolutions do not drop the engine has been adjusted successfully If revolutions seem to drop open the high speed needle by about 5 10 minutes Caution The engine must be stopped while you adjust the carburetor in order to prevent injury by the propeller Starting and running a new engine Having started the engine leave it running for about 5 minutes at a higher idle speed Then run it for about 20 minutes while changing revolutions from idle to 1 2 3 4 of the range and shortly holding eac
8. el line in the fuel tank as well as the supply line to the engine Selecting a Suitable Propeller The Evolution 26GT and 35GT have been designed to generate maximum power at 8500 rpm according to the type of exhaust used If you wish to utilize the maximum power output choose a propeller which will allow the engine to reach these revolutions or slightly lower revolutions The engine will unload in the air depending on the aircraft speed and propeller selected We do not recommend using propellers that allow the engine to reach more than 9000 rpm on the ground Suggested Propeller Dimensions Evolution 26GT 16x8 16x10 16x11 16x12 17x8 17x10 17x12 18x8 Evolution 35GT 18x8 18x10 20x8 20x10 20x12 21x8 21x10 Fuel for the Evolution Gas Engine The Evolution gas engine has been designed to run on a mixture of high quality unleaded gasoline and synthetic oil intended for racing 2 stroke gasoline engines For the break in period of the new engine mix the fuel in a ratio of 30 parts gasoline to 1 part lubricant After break in use a ratio of 40 parts gasoline to 1 part lubricant Starting the Engine Evolution Engines new carburetor comes i nt Air Pressure Inlet adjusted to a basic setting This setting should be ss Adjusting Needle L maintained during the initial break in runs 1 Adjusting Needle H Before you first start the engine make sure that the spark plug is screwed in and tight
9. ened and that the plug socket is fitted in place and fastened down properly Fix the ignition sensor in the proper position above the magnet with the screws enclosed Choke Lever Pressure Inlet Important Never turn the engine over with the ignition turned on unless the spark plug is inserted Carburetor Adjustments 266T in the plug socket This could lead to ignition Adjust needle L for low rpm range 1 turn and 50 minutes damage Adjust needle H for high rpm 1 turn and 35 minutes Basic setting minutes refer to the hands of a clock Carburetor Adjustments 356T Adjust needle L for low rpm range 1 turn and 45 minutes Adjust needle H for high rpm 1 turn and 45 minutes 1 Before attempting to start your engine make sure that the ignition is switched off the choke valve is closed and the throttle valve is about half opened Then turn the engine 3 4 revolutions assuming the engine has not been flooded 2 When you are ready to start the engine switch the ignition on open the choke valve and set the throttle at a slightly high idle speed Be sure to have a helper hold the model securely Using an electric starter begin cranking the engine It should fire within seconds of applying the starter Allow the engine to idle for 30 45 seconds 3 If the engine does not start even after using the starter to crank the engine a second time open the throttle to maximum turn off the ignition and turn the engine about 4 revolutions
10. h position gradually prolong the holding periods After 10 minutes of operation open the throttle to maximum for a period of about one minute At this point stop the engine and let it cool down Then restart it and check the adjustment If everything is all right you can make your first flight During first few flights do not overload the engine and do not let it run at high revolutions for long periods of time very important during hot weather Use up all the fuel that was mixed with the oil that is included with your engine From then on fuel and oil should be mixed in the proportion 40 1 Trouble Shooting Guide If the engine does not start Mechanical Faults check and use a new spark plug if needed Check If the engine can not be turned over easily the spark put the plug into the cable end and by turning the engine you ll see the necessary spark alikely cause is the piston in the cylinder is seized Note The plug must touch a metal part of the engine loosen and unscrew the cylinder bolts check fuel lines carefully remove the cylinder check for proper mechanical function by turning visually examine the piston and crankcase to find the engine over the likely cause of the engine s mechanical problem check that the carburetor is correctly installed remove the carburetor cover from the feed side Note Mechanical repairs must always be completed check the filter and blow off carburetor with by a professional service depa
11. ible with the JR radio battery connector While installing the ignition unit in your model be careful to have all parts that are connected to the unit and the engine situated as far as practical from the radio receiver and radio antenna The throttle servo should be mounted a distance of 8 12 inches from the engine The spark plug cable must not touch any part of the model structure as vibration may damage the cable If this is not practical it will be necessary to provide an insulation material for the cable The ignition unit itself should be wrapped in foam rubber to prevent engine vibration from damaging the electronics All components must be protected from contact with engine fuel Before flying your model you must perform an interference check Turn the ignition switch off receiver on transmitter on and with the transmitter antenna collapsed Walk with the transmitter to the limit of the operating range antenna collapsed Have a helper turn on the ignition switch start the engine and then check for a reduction in range with the engine running There should be no interference If there are any glitches from your radio system do not fly until the interference is resolved Plug Cap Plug Installation of the Ignition Unit Continued Technical data Battery Supply Current Consumption Plug Voltage Weight Dimension Sensor Magnet Space Plug Spark Gap Working Temperature a Ignition Module Red 74
12. o be free from defects in on the letter and return it via FedEx UPS materials and workmanship for a period of or insured Parcel Post Evolution Engines 2 years from the date of purchase During will not be responsible for product lost en this time Evolution s authorized service route center will repair or replace at their option any defective parts without charge For repairs not covered under warranty please specify in your letter whether you This warranty does not apply to damage want an estimate of the repair charges prior or defects resulting from misuse neglect to performing the service which may cause or abuse damage caused by customer a slight delay Payment for non warranty disassembly use of substandard fuel repairs should be made by credit card or use of incorrect accessories spark plug money order Unless otherwise specified all propeller etc or damage resulting from a repaired engines will be returned We will crash or any use of this engine other than do everything we can to expedite the service for which it is specifically intended Any required to your Evolution product of the above will automatically void the warranty of the engine Should your engine require warranty or non Evolution Horizon Service Center 4105 Fieldstone Road Champaign IL 61822 warranty repair service please package 1 217 355 9511 it carefully and return it to the address at www horizonhobby com the right along with a copy
13. r Evolution Gas engine is a modern generation electronic ignition It will provide excellent operation for a long time if used correctly Here are some features that you should be aware of 1 Automatic processor controlled timing advance that makes starting the engine easy 2 During normal operation the battery voltage will decrease When the voltage reaches 4 4V you will begin to notice a reduction in engine rpm This is an indication that you should land your model as soon as practical 3 The electronic ignition system on the Evolution 26GT and the Evolution 35GT is designed to operate on 4 8 volts The ignition system is not designed to use a 6 volt battery source 4 The electronic ignition incorporates an rpm read back function that enables the user to see the maximum rpm that the engine achieved in the just completed flight This is easily accomplished by using your optical tachometer to read the frequency that the ignition system LED is flashing after landing This can be useful when selecting correct size propellers to match the in flight rpm to the engine s horsepower and torque curves You will have to multiply the observed rpm on the tachometer by the number of propeller blades that you are using Installation of the Ignition Unit The electronic ignition unit requires a 4 8 volt battery source separate from your model s radio system A 600mAH battery will provide more than 1 5 hours of operation The supplied battery connector is compat
14. rtment compressed air Caution When using compressed air use eye protection when re assembling be careful to maintain the proper order of the components check the vacuum feed line 266T 356T Evolution Engine Specifications Evolution 26GT RPM range 1400 9500 rpm Bore 33mm Maximum power output 3 8 HP 9000 rpm Stroke 30 1mm Maximum torque 2 18ft Ih 8000 rpm Displacement 25 1cc 1 6 ci Fuel Unleaded gasoline Weight of complete engine Lubrication Dil w gasoline without ignition 936 9 2 06 Ih in mixture 1 40 Weight of ignition unit 165 8 5 8 oz Evolution 35GT RPM range 1400 9000 rpm Bore 35 5mm Maximum power output 4 1 HP 8500 rpm Stroke 35 2mm Maximum torque 2 49ft 1b 7500 rpm Displacement 34 80cc 2 15 ci Fuel Unleaded gasoline Weight of complete engine Lubrication Dil w gasoline without ignition 1493 g 3 3 Ib in mixture 1 40 Weight of ignition unit 165 g 5 8 oz The value in the table above stands for the weight of a completely assembled engine including the spark plug carburetor drive washer and prop screws Power output varies with the exhaust used The value given in the table stands for the maximum available power output GT Evolution Engine Dimensions Evolution Engines Ignition System The spark ignition included with you
Download Pdf Manuals
Related Search