Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ Clutch chatter

Posted by: mpoffers Apr 15 2009, 01:36 PM

My clutch can chatter pretty hard, particularly getting into first. I can get it to launch smoothly, I just have to be careful. It's a little easier to launch in second than in first.

My assumption is that a new clutch is in my future. I understand that this question is moot as I'll just replace everything, but what causes chatter? Is it warped friction surfaces? Bad surface finish? A slipping clutch makes sense to me, but I'm not sure I get what's going on in a chattering clutch.

Thanks.

Posted by: southernmost914 Apr 15 2009, 01:45 PM

Most likely warped flywheel surface but ,can be all of the above.

Steve

Posted by: SirAndy Apr 15 2009, 03:09 PM

Oil on the clutch will make it chatter too ...
Andy

Posted by: sww914 Apr 15 2009, 03:31 PM

Broken / loose motor mounts can cause it too. Not common but possible...

Posted by: '73-914kid Apr 15 2009, 04:58 PM

My dad had the same problem in his Vette. Chatter everytime he released the clutch. Turned out when we pulled everything apart to rebuild the tranny that the pressure plate was about 1/4 inch out of whack. Ordered a new plate, bolted it up, and no more chatter.

Posted by: bryanf Apr 15 2009, 05:43 PM

improper clutch adjustment can cause chatter in my experience. Also a worn pivot for the T/O bearing can do it...

Posted by: type2man Apr 15 2009, 07:57 PM

The most common causes are broken motor mounts, a worn bowden tube, oil on the disc and a warped flywheel....