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Flywheel Starter Nut
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Here are some more information for Flywheel Starter Nut:
Piston sticks at the top of the cylinder (new engine).
The piston's tolerance inside the piston chamber is so tight, there is no room for the piston to slide to the top. The solution is to heat up the piston chamber with a hair dryer or heat gun. This will expand the chamber, allowing the piston to glide smoothly, while maintaining good compression.
Nitro engine dies as soon as you pull it off the starter box
If your RC car is decently tuned, your problem is probably a loose clutch nut . The clutch nut is what connects the flywheel to the crankshaft. Pressing down your RC car on the starter box presses the clutch nut against the fly wheel, creating the spin that gets your nitro started. However, if your clutch nut is loose from wear and tear or impacts, it won't have the proper mesh it needs to keep the car running once you have removed your vehicle from the starter box. To see if you have a loose clutch nut, look for the fly wheel spinning on it's own. If it does, you need to remove the engine and tighten or replace the clutch nut.
Engine stalls when car put on the ground.
A frozen clutch-bell bearing or broken clutch-retainer spring is the most likely culprit. The engine stalls because the clutch is engaged when the engine is idling. When you put the car on the ground the engine croaks as it is not running fast enough to move the car. The retainer spring or clutch bell bearing are forcing the clutch to be engaged when it shouldn't be. You'll need to inspect both parts and repair or replace as required.
Car engine running backwards.
This is a common problem, with an easy fix as it is always caused by user errors. Make sure you put your RC car on the starter box with the correct orientation and that you put your wires on the correct poles of the battery.
Your engine dies while warming up.
The most probable cause of this is a worn piston and/or cylinder sleeve. When the engine is cold, compression is adequate to get it started and run nicely. As it warms up the fit between piston and sleeve loosens up as the sleeve expands. If the fit is bad enough, your fuel can exit the cylinder above the piston. As the engine gets warmer, this effect gets worse until the engine eventually stalls. You'll need to replace the engine or, if you like working on this kind of thing, the piston and sleeve.
Your roto-start or pullstart nitro won't start.
Your one-way bearing may not be catching on the crank shaft. This can happen if it is extremely dirty and you can clean it , let it dry overnight, and re-install it.
Your engine speed increases while idling.
Highly probable that the low speed needle on the engine is set too lean . A good confirmatory test is to pinch the fuel line and time how long the engine runs. If much less than five seconds it's too lean, if much longer than 5 seconds, it's too rich.
Jim Davidhe is an author of helpful articles on the radio control car (or RC Car) hobby. His website, http://www.minutesofthunder.com contains many more helpful articles for people interested in RC Cars.
Common car problems
Brake Problem
The common brake problems are :
- 1. Low Brake Fluid Level
- 2. Contaminated Brake Fluid
- 3. Worn Brake Pads
- 4. Bad Brake Power Boost Unit
- 5. Vacuum Problems
- 6. Brake Line Obstruction
- 7. Air in the Brake Fluid
- 8. Master Cylinder Bad
- 9. Bad Brake Disc
- 10. Car Out of Alignment
- 11. Worn Front Suspension
- 12. Bad Wheel Cylinder
- 13. Parking Brake Fails to Release
- 14. Brake Pads Vibrating
- 15. Loose bolts and nuts
- 16. Worn or Broken Suspension Components
No Start Problem
Possible starting problems are:
- Blown automotive fuse
- Battery corrosion
- Dead battery
- Bad ignition switch
- Bad starter connection
- Bad ignition coil
- Faulty distributor cap
- Broken or shorting coil wire
- Loose electrical connection
- Bad fuel pump and relay
- Clogged fuel filter
- Loose starter
- Bad injector
- Faulty cold start valve
- Chipped flywheel or ring gear
- Bad ECU or MAF
Automatic Transmission Problems
The most common auto transmission problems are:
- Low automatic transmission fluid level
- Leaking automatic transmission fluid
- Clogged automatic transmission filter
Steering and Suspension Problems
Possible steering and suspension problems:
- Low or uneven tire pressure
- Uneven or excessive tire wear
- Bad alignment
- Bad steering components
- Sticking brake caliper
- One or more wheels out of balance
- Worn shocks or struts
- Broken or slipped leaf spring
- Low power steering fluid
- Loose or worn power steering belt
- Bad power steering pump
- Leaking power steering rack
- Broken steering rack mounts
- Wheels out of balance
- Loose wheel bolts
- Worn or broken tie rods or steering rack
- Worn strut bearings
- Loose power steering belt
- Worn power steering belt
Engine Problems
Possible engine problems are:
- If you have a carburetor (there are still a few out there), the choke may not be set properly, or the choke may not be working correctly
- The engine may be running too hot
- The fuel pressure regulator may be operating at low pressure
- The ignition timing may be set wrong
- Ignition system problem
- There may be a fault in the computerized engine control system
- The fuel filter may be partially clogged
- Torque converter (automatic transmission only) may not be locking at the right time, or it may be slipping
- There may be a vacuum leak
- Possible internal engine problems
- EGR valve may be stuck open
- Drive axles may be loose or worn
- The fuel injectors may be dirty
- Dirty air filter
- The spark plugs may be dirty or worn
- The ignition wires may be bad
- You may have water in the gasoline
- If you have a carburetor, you may have a bad accelerator pump or power circuit
- The fuel filter may be clogged
- Your catalytic converter may be clogged
visit www.fixcarsyourself.com for more information and updates on common auto repair problems
About the Author
i have an 88 ford f 150 300 6 cyl have changed flywheel?
when i put i starter on something is binding it chews up the teeth on the starter or breaks the houseing on the starter ???????????????????its driveing me nuts someone please help
well my guess would be its the wrong fly wheel or you didnt put it on right but they do made starter shims that might help
1985 Pontiac Parisienne Brougham from North America - Comments
"Chrome on the monster, leather intestines.." What things have gone wrong with the car?
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