New clutch slipping..

hwrdbd · Jun 22, 2013

Put in a brand new valair dd ceramic clutch a few weeks ago. Everything on the install went smoothly as far as I could tell. Ran it for a couple weeks nice and easy, adhering to their 500mi low power break in period. Gave it until about 650mi and figured I would give it all my old truck has, which isn't much. My plan was to build my driveline solid then get my injectors and turbo set up... Clutch held fine the first couple times I ripped on it, but has progressively gotten worse, to the point where it slips insanely easily just getting up to highway speed. I've got about 1100mi on it now, trying not to burn it up before I have time to tear it apart again in a couple weeks.... :fustrate: I pulled the slave cylinder out today and there was clearly pressure on the clutch fork, which I believe should have a little slack in it no? Any ideas or insights as to what may be happening? I'm thinking some sort of binding with the clutch fork not letting it return all the way...

Rideracelivemx7 · Jun 22, 2013

from what i remember when i had my 5 speed, you could move the fork a little bit but the slave held just enough tention on it to keep if from vibrating about.

hwrdbd · Jun 23, 2013

Yes, that makes sense to me and is how I think it should be. The spring in the slave should hold the fork very lightly against the clutch, but mine seems to have something else keeping pressure on it. I have no movement at all when I take the slave out... Forgot to add originally that my truck is an e99.

RLSCOAL · Jun 24, 2013

this is interesting I seem to have the same issue let me know what you find

pontiacross · Jun 25, 2013

are you sure you didn't put a disk in backward?

Dieselfever · Jun 25, 2013

pontiacross said:
are you sure you didn't put a disk in backward?

Usually that will cause them to bind and not disengage

strokin'_tatsch · Jun 25, 2013

Call Valair.... Sounds like a spacing issue to me, especially if it's slipping that badly with stock injectors. They might have accidentally gotten the depth on the flywheel incorrect or something.

hwrdbd · Jun 26, 2013

I'm pretty sure I was careful to put the discs in properly... but you never know. I'm headed down to the ECLC truck show this wknd, so probably wont get around to pulling it apart until next wknd. Thanks for the replies everyone. This is driving me nuts... figured I would do it right and build it solid before I put any power to it lol, isn't quite working out for me yet haha.