Ok i bought a used exedy clutch.I had my good freind who is a mechanic take a peak at it and he gauged the disc at 3.8 mm.He said it looked descent and that it would be ok to install it so i had it installed.Today i went to the local track to run the car only to find it cannot be launched at all its like its not fully disengaging it basically starts to vibrate the whole car violently.Basically i had to let out or something would wind up being damaged i thought it was wheel hop when others there said it was not hopping at all its like its like the disc are not grabbing the pressure plate.If anyone in here could give me some advice it would be greatly appreciated.THANKS GUYS

 

Oh yeah and one more thing it starts to rev to redline almost immediately after i lift the clutch pedal on the two step

 

Have you adjusted your clutch pedal?
See here:

http://www.evomoto.com/tech_articles..._article_id=28


Have you bled the clutch line?


Also, while using the Exedy Twin, you should also remove the slave cylinder clutch pill.

See here:
http://www.evomoto.com/tech_articles...h_article_id=4




-Bink

 

the clutch pill was removed along time ago the system was never opened and i launched the car over a 100 times on the old clutch and never had this problem presently the clutch pedal is adjusted high only cause it would not go into gear with it set in the middle

 

How positive are you that one of the clutch discs was not installed backwards?


-Bink

 

talk to me people what could be causing this issue it only does it when launching the car

 

being i did not do the install myself i dont know if they were installed backwards or not is the problem im having caused from the disc being backwards

 

It can be. It sounds like a disengagement problem or a bad slave cylinder.


Can you give a slightly better/clearer explanation of what happens?


-Bink

 

when i rev the car to launch it when i start to let the clutch out it starts to shake and vibrate extremely bad and imediately starts to rev to the limiter and just shake extremely bad

 

i have never had this issue so thats the only way i can describe it

 

Sounds like part of the clutch is slightly bent. I hate to say it, but sounds like you are going to have to drop the tranny, take the clutch out and send it to Exedy to have the clutch inspected.

Now that I know it shakes badly, I would bet the pressure plate is bent.

Also, the rev'ing definitely indicates an engagement issue.



-Bink

 

how does the pressure plate get bent?what would cause this can a disc get bent?

 

hey blinky what can cause the pressure plate to get bent??

 

Hard launch, mileage or an incorrect installation of the clutch. Or maybe something simple like the clutch dics themselves need to be replaced.

Not saying it was installed wrong in your car, but perhaps the original owner had a problem with it and sold it.



-Bink

 

pretty sure he wasnt having problems with it his car got repossesed so he parted out some of the aftermarket stuff for quick cash,as far as a hard launch it has not been lauched by me yet i tried and experienced this problem therefore gave up when it started to vibrate.