Installed a new flywheel and a sachs 890nm kit (without springs) and now getting clutch chatter.. Not bad cold, but really enoying parking it when hot, especially in reverse. Got approx 70 miles after installation now

Anyone with good suggestions?

Got a new master, new gear mounts and new rss engine mounts..

Can it be the accumulator?
Can an accumulator with worn internals fail to absorb the pulsations of the hydraulic pump/assist? So in that case cause the chatter?

Reservoir front an back are at stabil levels..

 

Put a sprung disc in it.

 

i run sachs oem parts with a gt2 unsprung disc and no chatter. make sure the parts are all compatible with a new dmfw cos it sure isn't the accumulator.

 

my car chatters in hot like crazy, im on light flywheel as well, I don't mind.

 

What exactly do you mean by clutch chatter? Perhaps you are hearing harmonics from the engine because you have a SMLWFW? If that's the case, then it is what it is it is the nature of the beast (but worth it imo). This would NOT be an accumulator issue. Does it go away w/ clutch pedal depressed? If so then it is exactly what I stated.

Oh - and don't forget to log about 500 miles on your setup before hammering it....need to break everything in.

 

Miss installed needle bearings in the fork can cause chatter also.

 

I just had the worst flash back ever.....GOD that assy in-situ was a F'N nightmare

 

I had a "pro Porsche race shop" at my local track install my freshly rebuilt clutch and trans and they didn't put the whole assembly on one side not even the race that the bearing rest in. Had terrible chatter especially in reverse. They tried to blame it on my light fly wheel. The throw out bearing ended up pulling though the pressure plate stranding me.

 

Im running sachs "2.5" with solid disc....no chatter.

 

Using higher RPM when engaging will allow you to smooth it out. I have an un-sprung clutch as well. Chatter will reduce a little over time. (providing none of this is an install issue)

 

^ ya, one hour of wrangling into place, and two hrs for the fork lol

 

proving only that practice really can make perfect. job well done.

 

btw, is that the "built" gearbox from randy's car? i seem to remember that was one thing for sure he did correctly. but its been a awhile..

either way, you must have that thing pretty well sorted by now. have a good summer ( and beyond ) with it!

 

nice! are you running that sqs he bought? thats a pice of work no doubt..

 

probably just as well.. i've never fully understood the mechanics of that sqs unit anyway.. it's pricey too

well again, GL w the wrapping it up and hope you get in some good runs this summer. cheers.