i had an experience with my clutch when my mechanic installed it. i was installing a CM stage 3 clutch on to my CM flywheel that i already had in there. when i got it out of the shop i notice there was severe chatter . this happened for a while until i got sick of it. it made me go back to stock flywheel and and clutch. my mechanic noticed grooves or hotspots on the CM flywheel so could that be a reason for the chatter. do u think the disk and pressure plate is fine. my stock clutch now is losing its grabing power and i wanted to try out my CM clutch again. i will be using the stock flywheel with the CM clutch. this clutch only has 500 miles on it. do u think i should just buy a new clutch even though this clutch is still pretty much new. my funds arent that good but i need some advice

 

just use your stock clutch the way it is. But i'm thinking your chatter is coming from either the pilot or throw out bearing. Did you change both of these when putting in your CM clutch and pressure plate?

 

i also have this problem i have a clutchmasters stage 2 with CM flywheel and have teh same problem . i changed the pilot bearing and throw out bearing.

 

my brother had the same clutch...and same problems: chatter and slight hot spots...but the clutch worked just fine

 

what exactly is chatter?

 

clanging sound coming from the bottom of your car when the clutch is engaged.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JiggyKooAndy &raquo;</TD></TR><TR><TD CLASS="quote">what exactly is chatter?</TD></TR></TABLE>

 

Oh and I thought you were going to bust out a very detailed post about clutch chatter.

 

try this for an explanation...

http://www.btc-bci.com/~billben/clutch.htm

OR

http://www.babcox.com/editorial/bf/bf50332.htm

OR

http://www.carcarecouncil.org/...shtml

and if that does not help, try google and type in clutch chatter

 

hey I just got my clutch installed today, and im getting that chatter noise also on my act clutch and flywheel. It only happens when i Accelerate in 1,2,3. Im hoping it goes away pretty soon.


BUMP

 

I thought that clutch chatter was caused by a mis-aligned pressure plate. You can mis-align a pressure plate if you don't properly tighten the pressure plate to the flywheel.

I had clutch chatter on a stock friction plate once but it eventually went away.

 

yeah it came with a new throw out bearing. its weird that alot of u guys are experiencing this too. its a sprung disc and should not chatter so i just hate it when it does. the pressure plate was aligned properly cause my mechanic does great work. just trying to figure out if it was the CM flywheel caussing this?

 

did it go away after changing the throw out bearing and pilot bearing??????

 

Did you have the flywheel re-surfaced when you did the clutch?

 

no u cant resurface a CM flywheel at least i dont think so.. is it always necessary to resurface a flywheel when u install a new clutch??????

 

It's not necessary to re-surface, but it is a good idea.

 

Clutch chatter is usually caused by a bent disc. If you are not careful when sliding the transmission back in, it is very easy to bend the disc. The input shaft needs to go in straight, and the transmissionneeds to be well supported. If is not, the disc will be bent and cause chatter.

 

I had the same problem when I installed my 4 puck ACT clutch and streetlight flywheel... only my chatter is more of a small sqeeking noise almost sounds like im peeling out...... Got annoying and went back to stock...

 

I don't know about chatter in light organic clutches like stock or stages 1 & 2 CM/ACT. But I had a bronze ceramic 4 puck stage 4 in my R, with a resurfaced ITR flywheel and that puppy chattered badly at first and eventually went away 75% Just light chatter at engagement from there on, but boy did it grip. Slippage wasn't even in it's vocabulary.

Just for the record, chatter in a heavy race style clutch is not an indcation of improperly installed parts, it's totally natural.

 

Good info guys. I was thinking too, that it was bad installation, but the mechanic who did mines is really good, so I was a bit confused. But if its natural then im not worrying, my chattering isnt that loud either.