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Old 09-15-2008, 05:51 PM   #1
dvu
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Default Nitro Idle

Hello,

If you have read some of my post, you already know I have an HPI R40 and have had a heck of a time getting it going. But I think I'm actually there. I think I have the clutch working and all.

A question about the idleing though. When I start it up and it's idling it will kindof inch forward, at times, but that's it (which I think it is suppose to do). However, after I run it at full throttle for a few seconds and then lay off the throttle completely and it's idling, the clutchbell is still spinning SOMETIMES.

Should I add remove a couple of spacers to the clutchbell (increaase gap btwn shoe and bell), or tighten down on the clutch spring or richen up the gas or all of the above.

Thanks, Duc

Last edited by dvu; 09-15-2008 at 06:09 PM.
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Old 09-15-2008, 11:09 PM   #2
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If your clutch bell is still spinning then isn't the car? If that's the case then yeah i would probably loosen my clutch nut a little or it sounds like you maybe need to just back your idle screw out a touch but then again i may be wrong, is there a good hobby shop near you?
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Old 09-16-2008, 12:41 AM   #3
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Quote:
Originally Posted by dvu View Post
Hello,

If you have read some of my post, you already know I have an HPI R40 and have had a heck of a time getting it going. But I think I'm actually there. I think I have the clutch working and all.

A question about the idleing though. When I start it up and it's idling it will kindof inch forward, at times, but that's it (which I think it is suppose to do). However, after I run it at full throttle for a few seconds and then lay off the throttle completely and it's idling, the clutchbell is still spinning SOMETIMES.

Should I add remove a couple of spacers to the clutchbell (increaase gap btwn shoe and bell), or tighten down on the clutch spring or richen up the gas or all of the above.

Thanks, Duc
yr clutch bell is binding to the shoe likely...

try in this sequence (if 1st doesn't solve yr issue, move to 2nd, etc...):
1. lower yr idle.
2. tighten yr clutch spring by half a round.
3. increase clutch gap by 0.1-0.2mm; thus yr endplay will need to be reduce accordingly.

hope these helps...
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Old 09-16-2008, 01:52 PM   #4
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That helps a lot. Thanks.
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