Clutch problems

Originally Posted by Boost_lee

Just curious ron, when they pulled the pressure plate off were all the bolts torqued pretty evenly? Doubt it was checked if removed by impact, or even if that could cause this issue, but I was just curious.

Originally Posted by Joe@ZSpeed

The thing with kevlar is you can't feel it slip. When kevlar is new it does not hold it's rated TQ much like other clutches, It is just more particular about break in as it wears so long that it takes a lot of miles and use to get it to flatten out and seat in. As you can see it is only seated on the very outer part of the clutch disk. Once it levels off and begins to flatten out is when it will hold all of its rated TQ.

It will only slip a little and you just can't feel it unless you continue to do it then it will go away on you if you do it too much during break in.

I think the issue may be the spot on the flywheel where it looks to be raised up a bit from excessive heat.

The clutch will be checked over and put on a release/clamp load machine to see if everything is working properly. This checks pressure plate lift (release) and clamp load.
These are all checked before they go out as was this one to make sure they work before they go in the car, Something few companies do.

Most likely I will take care of you on this even if it is something you did unknowingly. I may just have you cover the ship on the new kit if we can't find a problem with the clutch itself other than the overheated part.

Originally Posted by DIGItonium

Joe sent me a full face ceramic to replace the street disk that came with the OFE Stage 4 kit. I absolutely love this disk! Engagements are super smooth, easy to modulate, no judder, etc. I can make smooth fast shifts with no jolt. This car is an absolute joy to drive again.

The advice about bleeding the clutch line from the master made a big difference. The tech even had to unhinge the clutch pedal to further squeeze any air bubbles trapped in the master cylinder. It took about 2 hours to figure it all out (no pressure for awhile). Engagement is perfect, tip in is perfect (barely 0.5" of play, and it has a slightly springy resistance versus no pressure floppy feel). This is what you want! I drove all week and pressure remain the same regardless of temperature or how long I've driven it.

It has been over half a year, and I forgot how much fun this car is to drive. I finally made the 1-2 shift at high revs without grinding.

Overall, no more sticky gears, lurch, clunk, notchiness, etc. Drawback... 3rd gear synchros are starting to fail. Hope to get a new transmission soon.

Thanks, Joe. I'll box up the old disk tonight.