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This idle break-in method does not produce enough heat to expand the sleeve to normal operating size, so the piston wears to
the under-expanded sleeve size. Once the engine is run at normal temperatures, the piston is too small for the sleeve,
creating loss of compression. For proper break-in and normal operation, it is critical that your engine is ALWAYS warmed up
as quickly as possible to within its normal operating temperature range in order for the piston and sleeve to expand to their
normal operating sizes, otherwise the piston will scrub the under-expanded sleeve too much causing premature wear and loss
of compression quickly.

WARNING: Pinch-zone wear, resulting in loss of compression, is NOT covered by warranty. We have no control over what
brand of fuel you use, and/or the way you tune and operate your engine. Your Fantom engine is built using the latest ABC
technology, and will last just as long as any other brand of ABC type engine, as long as it is used in accordance with this
instruction manual, therefore it is your responsibility to operate your engine properly, to obtain the longest usable life possible.

WARNING: Do not let the engine sit and idle for its break-in. Proper operating temperatures will not be obtained to achieve
the correct “seating” of the piston and sleeve in the pinch-zone area.

WARNING: Never run your engine at wide-open throttle for extended periods of time. No engine, no mater what brand, is
designed for this type of operation. Running your engine wide-open for extended periods of time will cause premature engine
failure, which is not covered under warranty. We recommend limiting your wide-open passes to 200 feet or less at a time, and
not repeatedly time after time, right in a row. Engines are generally designed for racing type conditions, so think of how you
would run your engine on a racetrack. Typically, a racetrack consists of one or two long straightaways and a series of short
straights and turns. In a racing situation you are never running your engine wide-open for extended periods of time, so neither
should you run your engine this way when using it for fun in the back-yard or street. Use common sense and your engine will
last much longer and your experience will be much more enjoyable.

4

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Содержание FR21

Страница 1: ...50201 SILVER STREET VICKSBURG MI 49097 PH 269 649 9583 FAX 269 649 9584 WWW FANTOMRACING COM...

Страница 2: ......

Страница 3: ...NE 22 ENGINE MAINTENANCE CAUTION STATEMENT 3 INSTALLING FR 21 27 23 NEWS WARRANTY 4 INSTALLING FR 21 27 24 FR 21 27 REPLACEMENT PARTS 5 INSTALLING FR 21 27 ENGINE OPTIONS 25 FR 21 27 REPLACEMENT PARTS...

Страница 4: ...refer to your vehicle s instruction manual for any special instructions not covered in this manual 2 If applicable remove your old engine from the original engine mount and set it aside to use with y...

Страница 5: ...leaking fuel tank can cause severe problems with your engine s performance Therefore inspect the tank for leaks and replace it if needed Install a new fuel line leaving plenty of extra length it will...

Страница 6: ...they can order one for you from one of our distributors They are available in natural team finish part FAN20014 single stage or FAN20016 dual stage or shiny nickel finish part FAN20015 single stage o...

Страница 7: ...figurations by referring to the following information and part numbers 1 Your FR21 or FR27 was built with a standard glow plug head button which is best suited for off road and or high torque applicat...

Страница 8: ...il later in the manual in the Break In section The cooling fin area of the cylinder head regulates the temperature When a carburetor mixture is set properly the temperature of the engine should be of...

Страница 9: ...for proper combustion chamber compression Excessive rubbing due to under expansion of the cylinder sleeve produces pinch zone wear Pinch zone wear produces combustion gas blow by when the engine is up...

Страница 10: ...an Although not all are directly related to fuel the following list includes the most common causes for lean mixtures 1 The primary needle valve is set too lean 2 Incorrect gearing placing too much lo...

Страница 11: ...dense air conditions this is why you will usually notice better engine performance in the spring and fall months IMPORTANT In cold weather conditions e g winter months and or certain regions in the wo...

Страница 12: ...true of low elevations The higher you are above sea level the more you must lean the needle valve and vice versa The Effect of Operating Conditions Depending on your particular operating conditions yo...

Страница 13: ...the engine by placing your finger over the exhaust outlet for a few seconds while turning the engine over with either a starter box or pull start depending on your engine model this will pressurize th...

Страница 14: ...s procedure if you experience difficulty starting your engine during the initial start up and first 2 3 tanks of fuel After the first few tanks of fuel the engine should be broken in sufficiently and...

Страница 15: ...to rise This is normal since nitro is the primary power producing ingredient in the fuel s chemistry As the temperature increases so does the expansion of the piston and cylinder sleeve As described...

Страница 16: ...with an interference fit or in other words the sleeve is actually tapered so that the piston is pinched at TDC top dead center when the piston reaches the top of its stroke Since ABC engines don t ha...

Страница 17: ...y begin dialing in the high speed needle valve for maximum RPM performance during the first tank of fuel see more detailed information on setting the needles in the SETTING THE NEEDLE VALVES FOR OPTIM...

Страница 18: ...after the engine has been brought up to normal operating temperature this is accomplished by running the vehicle for a minute or so IMPORTANT The needle valve settings will vary from day to day depend...

Страница 19: ...s High speed needle 3 1 4 to 3 1 2 turns counter clockwise CCW out from closed Low speed needle see illustration 1 approximately 2 1 4 to 2 1 2 turns CCW Idle adjustment throttle stop should be set so...

Страница 20: ...hrottle Sluggish acceleration with excessive blue smoke coming from the exhaust Excessive unburned fuel exiting exhaust 4 Signs of overly lean mixture Sagging and or erratic engine response Sudden los...

Страница 21: ...ine rpm This setting is a personal preference adjustment we like to set ours so that the engine idles just below clutch engagement ENGINE MAINTENANCE Proper care is necessary for maintaining engine lo...

Страница 22: ...e frequency of plug changes will vary depending on products and operating conditions Some of these include Glow plug brand Needle valve settings Weather conditions Checking the Glow Plug s Condition U...

Страница 23: ...pose it s a hygroscopic agent it attracts rust producing moisture For stubborn dirt and grime an old toothbrush will help Be careful not to allow any dirt or grime to be washed into the engine through...

Страница 24: ...property if not handled properly Use caution and exercise courtesy when operating your vehicle around people and property Children should ALWAYS be under adult supervision when operating nitro powered...

Страница 25: ...ormal wear are not covered under warranty Any warranty repairs will be at the discretion of Fantom upon inspection of the engine Any modifications to the engine will void all of this warranty If it is...

Страница 26: ...sold separately FAN10414 21 27 Gasket Set FAN10415 21 Head Shim pack of 3 FAN10416 21 27 Exhaust Header Seal pack of 2 FAN10418 21 27 Replacement Head Bolts pack of 6 FAN10419 21 27 Rear Plate SHC Sc...

Страница 27: ...REPLACEMENT PARTS LIST CONT FAN10406 21 27 Pull Start Assembly FAN10407 21 27 Pull Start One Way Bearing FAN10408 21 27 Pull Start One Way Bearing Shaft FAN10409 21 27 Rear Plate for Pull Start FAN10...

Страница 28: ...High Speed Needle Assembly with Gasket FAN10425 21 27 Low Speed Needle Assembly FAN10426 21 27 Idle Screw with O Ring FAN10427 21 27 Carburetor Securing Pin with Washer Nut FAN10428 21 27 Fuel Inlet N...

Страница 29: ...FR21 FR27 MANUAL ADDENDUM EXTREMELY IMPORTANT READ BEFORE STARTING ENGINE WWW FANTOMRACING COM...

Страница 30: ...est way to tell if you have a 2004 or 2005 model FR21 or FR27 is to look at the crankcase nose area around the crankshaft bearing 2005 models are machined in this area from the front edge to approxima...

Страница 31: ...et standard glow plug is O Donnell 100 part ODO100 FAN10603 FR21 FR27 standard glow plug for off road applications common aftermarket standard glow plug is O Donnell 99 part ODO99 BASELINE NEEDLE SETT...

Страница 32: ...of the rings to create compression in the combustion chamber The most critical aspect of a model nitro engine is compression because without it an engine will not run properly and is nearly impossible...

Страница 33: ...r responsibility to operate your engine properly to obtain the longest usable life possible WARNING Do not let the engine sit and idle for its break in Proper operating temperatures will not be obtain...

Страница 34: ...nd sleeve usually causing improper and or greater piston and sleeve clearance causing combustion blow by loss of compression Also by changing nitro and or oil contents all needle settings will require...

Страница 35: ...an1 8 turn As you lean the needle each tank you should notice that the engine s temperature and performance will also increase Once you are ready for the 5th tank of fuel ideally your Main needle shou...

Страница 36: ...ng from the pipe and noting its power and acceleration characteristics while driving Once you learn your engine s operating characteristics a temperature gun can be very useful in referencing operatin...

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