Hi all, We just did a short block on an evo and when we took it apart we found that whoever installed the ACT clutch kit in it put the disk in backwards. The disk was worn plus it had ground against the flywheel bolts where the spring retainer surfaces kind of bulge out of the clutch disk hub section. We recommended the customer puts a new disk in the vehicle. Pressure plate wasn't that heated and he was on a budget after buying a new short block. A shop recommended the Exedy 6 puck disk. He ordered that, it was drop shipped to us, we installed it. Now with the factory flywheel, ACT extreme pressure plate, and exedy disk, the clutch lets out at the very top of the pedal throw. ( I mean very top) and it feels as
though the clutch is slipping. It's obviously not getting proper engagement. I did some research, and found this disk is supposed to be a perfect match with the factory Mitsu pressure plate. I then called ACT to see if their pressure plate dimensionally and functionally was the same as the factory style. They said yes, they change components on the pressure plate for increased strenght, durability and clamping for but it should be identical fit wise to the factory plate.

I'm thorougly confused. Anyone run into this issue before? Do you think the original disk being installed backwards had an ill effect on the pressure plates range of movement such that it doesn't travel as far thus not clamping the disk.

Any ideas would be greatly appreciated.

 

Wow, I didn't even know that was possible. From looking at that myself, I couldn't even bolt the pressure plate on with the disc in backwards, it stuck out so far.

Might have damaged something else by doing that, who knows. Sorry, no ideas here.

 

Yea I've never been dumb enough to try it myself so I wouldn't think it's possible. I'll take pics of the flywheel bolt rub marks and I kept the disk so I can take pics of that too.