jerome951

Hi Guys and Gals,

I'm in the middle of replacing my clutch w/ a KEP lightduty PP, 930 disk, and stock flywheel.

During assembly, the PP was difficult to bolt onto the flywheel. The stock bolts weren't long enough to get started without compressing the PP with a c-clamp. Once I got it tightened down, the clutch housing on, and the fork attached, I noticed the fork cup is right in the middle of the inspection hole (more forward than I'm used to on the factory PP).

I previously started another thread here:

https://rennlist.com/forums/showthre...eferrerid=7375

After taking everything back off, I noticed the TO bearing on the KEP PP sits much lower at rest than the factory PP; see pic below and on page 2 of other thread (which caused the difficulty bolting the KEP into place). Is this normal?

Thanks,
Jerome

TRP951

Yea the TO bearing will sit lower because the KEP is set for a higher clamping force. The 930 disk is a little thicker than a standard clutch disk so that also would create a little difficulty getting the pp on. I used to run that setup before was a smooth setup

DanaT

I asked KEP about using the 930 disk with a KEP-PP. They said absolutely do not do it when I bought my PP. You may want to call KEP and discuss it with them. KEP said it was too thick to work with their PP. I followed their recomendations.

-Dana

jerome951

Thanks for the input, Dana.
I've been told he 930 disk is only 1mm thicker than the cup clutch. Did KEP indicate why the 1mm makes a difference?
I'm also interested in the 930 disk because the material is stronger than in the cup clutch, which I like for my track car.

jerome951

Thanks Tim,
Do you remember if the fork cup was situated about where mine is (first pic in the other thread) when you first installed it?

gt37vgt

so how thick is a 930 disc then ? mm?

333pg333

Surely there's other discs that are as good or better than the 930 that will suit. What do KEP recommend for your useage?

Jeff N.

Markus Blazak also suggested to me that you shouldn't run the 930 disk due to the extra thickness. Said causes problems with a clean release and thus tends to wear the syncro's more than needed.

I have a 930 disk and KEP 1 plate in the basement and need to research more before I really decide what to do.

It seems there are quite a few people running the KEP plate and 930 disk without issues...

Techno Duck

I have a KEP stage 1, 930 disc and stock flywheel. No problems on my end. I did not remember any difficulty bolting the pressure plate to the flywheel.

I know the throwout bearing between the n/a and turbo is different, are you sure you have the right one? I'm not sure what is different between the two but worth checking.

DanaT

I just bought a KEP clutch disk too. IRC is was about $250 so not high priced.

I am not sure why they said it was too thick, but 1mm can make big differences. You cant force a 101mm piston in a 100mm hole.

I also went with a Blazack fork for extra insurance.

-Dana

KuHL 951

So is the consensus that the 930 disc can have issues with the KEP S1 only or is it the same for the OE PP? I have the Sachs PP and the 930 disc but the car isn't finished yet. Mine seemed to bolt up fine though with the OE PP on a dry fit a few months ago.

TRP951

Yea IIRC the fork cup was about where yours was. The thing with the 930 disk since its thicker you have less travel and if your crank bearings are worn and you have excessive play it might not release.

Tom M'Guinn

I can't tell for sure from that picture, but it looks like the starter ring may be on the pressure plate upside down? The outer side has recesses for the bolt heads, so that they don't sit too high. If the starter ring is on backwards, the bolts sit flush on the ring and will seem too short when you install it. That might explain why you had to clamp it to install the pp.

theedge

They do protrude a bit even from the recesses, but I cant see if theyre in the holes at all from that picture.

samluke

I run the KEP PP with a Spec friction disc and a stock flywheel. No issues, other than some juddering in reverse. Release lever is close to the edge of the hole.

I had no issues bolting the PP to the flywheel.