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Old 04-08-2013, 01:15 AM   #1
Scooby Newbie
Member#: 191941
Join Date: Oct 2008
Location: Minnesota
2007 STI

Default 07 STI Clutch slips excessively even under light acceleration

I just finished a complete engine rebuild that I performed myself, and now the clutch slips very excessively (Disappointing to say the least after this long rebuild project, but at least the engine seems to run great!). Before the tear down I thought the clutch held well, and the car drove well. I cleaned the clutch while I had it out just with compressed air and some paper towels, but I didn't use any chemicals as I didn't want to leave any residue on the clutch surfaces. Just figured getting the dust out couldn't hurt. Now it is almost not driveable. Even at half throttle the clutch will slip like crazy... I can't get into boost at all.

I think I may have installed the clutch fork wrong initially, but I fixed that.

I'm thinking the problem could be one of the following...
1. The clutch fork being installed wrong initially caused excessive slippage by not allowing full clamp force, and I may have glazed the clutch on my first test spin around the block?
2. I did something wrong installing the clutch itself?
3. The clutch is just plain wore out... seems odd since it worked fine before the tear down though?
4. Something broke during the install and I didn't realize it?

What do you guys think?
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STi_Scott is offline   Reply With Quote