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Old 07-10-2009, 02:56 PM   #1
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Default Unscrewing the pinion gear from clutch bell

I've been trying close to an hour to unscrew my second gear pinion from the clutch bell, to no avail. I've tried using a pair of pliers but the bell would always slip away from the plier. Also tried holding it with a vice with same results.

Grrrrr.

I mean WTF? It's not like I gorilla tightened it. I just tightened it snugly by hand! Any tips?!


The car is TM G4RS 09 but afaik the bell looks the same as most of other nitro TC's, including NT1 and RRR.
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Old 07-10-2009, 03:08 PM   #2
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You need a tool for it. Mugen makes a good one, though I don't know if it works on a TM. Probably will.

You might as well get a new clutch bell while you are at it. Your old one is probably slightly bent now.
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Old 07-10-2009, 03:09 PM   #3
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Place a small L allen driver in the Clutch bell hole. Hold it with plier. Then use other plier to unscrew the pinion
You should consider buy pinion removal tool.. it makes this much more easier
Did you use loctite?
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Old 07-10-2009, 03:40 PM   #4
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Quote:
Originally Posted by jeff1 View Post
Place a small L allen driver in the Clutch bell hole. Hold it with plier. Then use other plier to unscrew the pinion
You should consider buy pinion removal tool.. it makes this much more easier
Did you use loctite?
Worked brilliantly. Thank You!

No I didn't use any locktite. I guess it was the heat.
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Old 07-10-2009, 06:27 PM   #5
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It's the heat and the fact that running the car tightens them. Plus aluminum on steel tends to bind anyway. I used to put a thin film of grease on the threads to make sure it would come back off but haven't found that necessary anymore.
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Old 07-11-2009, 12:35 AM   #6
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Quote:
Originally Posted by wingracer View Post
It's the heat and the fact that running the car tightens them.
And the fact that during driving, the rotation direction of the engine will naturally tighten the pinions... escpecially during shifting to 2nd gear....
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Old 07-11-2009, 10:17 AM   #7
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Quote:
Originally Posted by wingracer View Post
It's the heat and the fact that running the car tightens them. Plus aluminum on steel tends to bind anyway. I used to put a thin film of grease on the threads to make sure it would come back off but haven't found that necessary anymore.
I always put a light coat of anti-seize on the threads before I tighten the pinion down.


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