I have put on a 6mm one now and it seems to work fine. Thank you guys for helping me out
Now I have some issues with the clutch that came with the kit. I have used an old centax from a Vector 98 spec on my test engine. That worked very good.
I tried to install the new one on my 2nd engine and found out that the car just stood still. It seems like it just slips and is not engaging. I took off the clutch bell and the clutch shoe had some marks on it, slightly black "burnt".
When I assembled it I had to use so many shims to get the first gap between 0,5 and 0,8. It ended up on 0,6. Even the end play when I screw on the bell is a bit too much.
What can I have done wrong?