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Old 07-15-2006, 03:58 PM   #1
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Default Nitro RTR3 RS4 Clutch Bell not engaging

hello again all, not sure if you remember me but uh. im new to all this. so yeah any ways. the clutchbell is not engaging.i tried moving the engine as close as possible to the thing that makes the car move but it wont reach. whats wrong with it?. is the clutch bell dull so its not reaching over there? the clutchbell spins, spins fast when i give it gas, goes slower when i take away the gas, but its not touching the part that makes the car moves, how can i make it get over there. thanks.
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Old 07-15-2006, 10:00 PM   #2
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bump, please.
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Old 07-15-2006, 10:11 PM   #3
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could you take a picture? i cant figure out what exactly is going on. what it sounds like is the engine isnt reaching the spur gear. is it stripped (the spur gear)? has the car worked before and then this happened?
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Old 07-15-2006, 11:02 PM   #4
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yes, the engine isnt reaching the spurgear,
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Old 07-16-2006, 07:59 AM   #5
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is the spur gear stripped? like are the teeth still on the gear or did it get grinded down.
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Old 07-16-2006, 02:27 PM   #6
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yes the teeth are still on it.
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Old 07-16-2006, 06:06 PM   #7
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could you take a picture?
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Old 07-16-2006, 06:18 PM   #8
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will do, give me a minute.
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Old 07-16-2006, 07:22 PM   #9
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you can barely see the spur gear, but theres a gap inbetween. about 5 mm or so i dont know , but the clutch isnt reaching it.
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Nitro RTR3 RS4 Clutch Bell not engaging-dsc05192.jpg  
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Old 07-16-2006, 11:41 PM   #10
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boobump.
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Old 07-17-2006, 09:25 AM   #11
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could you just pull the handle and tranny cover off. so i can see inside a little better.
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Old 07-17-2006, 09:30 AM   #12
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There are several sets of holes in the chassis if I recall correctly. Is the engine screwed into the right set of holes?
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Old 07-17-2006, 10:15 AM   #13
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If you take a closer look at the dark picture of the spur gear near his read arrow head, it looks as if the spur gear has been stripped. There are noticable shavings as if it had been stripped. You may want to replace the spur and reset the gap to the correct mesh. Sometimes, it is possible to visually see some teeth left on the spur, but it may be ground down enough not to make contact with the pinion.
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Old 07-17-2006, 10:39 AM   #14
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Yeah most likely stripped spur gear. (the bigger plastic one).

Youll want to set the gap so the clutch bell spins freely, but is as close as possible. It essentially should be as close as possible without touching. This is how I set mine and it works great.

Also lock tighten your engine screw...if it comes loose this will cause the same problem.
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Old 07-17-2006, 10:53 AM   #15
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Quote:
Originally Posted by sook
If you take a closer look at the dark picture of the spur gear near his read arrow head, it looks as if the spur gear has been stripped. There are noticable shavings as if it had been stripped. You may want to replace the spur and reset the gap to the correct mesh. Sometimes, it is possible to visually see some teeth left on the spur, but it may be ground down enough not to make contact with the pinion.
this is why i wanted a picture with the cover off.

also, could we get a picture of the chassis? one good enough so we can see all the screws near the engine and tranny.
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