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Old 01-05-08, 12:12 PM   #13 (permalink)
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Julian West
7 Tenths
United Kingdom
 
Join Date: Dec 2001
Location: Devon, UK
GT40: GTD
Posts: 750
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Re: drivetrain/clutch shutter! tranny mounts?

Quote:
Originally Posted by RacerDave View Post
Hi
Shudder in sintered racing clutches is very common. AP, Tilton and Quarter master,Coleman use basically the type of sintering. If you have a solid mount hub on the drive disc there are no springs to help dampen the shock of engagement. Racing clutches are not designed to be slipped. Over the years I have seen many customers tear up brand new units trying to load their cars on the trailer slipping the clutch. Another source of problems mainly in multidisc applications is not indicating in the bellhousing.
IMHO this is very true, changing the engine/trans mounts won't stop the shudder... the cause is the solid centred clutch. I run an AP sintered clutch & found the easiest way to reduce or stop the shudder is to try a different technique on the clutch pedal.

Full throttle starts are no problem, for road use, parking etc, try less revs as the clutch 'takes up'......it might be different in your application but it works for me.

Dave, when you say 'indicating the bellhousing', do you mean *indexing*??? do you know how to do this?

Regds,
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