9000 clutch????? slipping and grabbing high?

1360 Views 4 Replies 2 Participants Last post by 900AERO, Nov 15, 2008

900AERO

Discussion Starter · Nov 13, 2008

I just installed a new slave, a used but seems in good shape PP from a 1991 turbo 900 ( or a 9000) not sure? and a 9000 clutch disk. the clutch is engaging very high almost right before my foot comes of the pedal. the clutch slips @ 8 psi... also the pedal seems pretty soft compared to before where the pressure plate had magor wear. does not make any sense, but maybe someone can clear the water for me.

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900AERO

Discussion Starter · #2 · Nov 13, 2008

So after a lot of research
900 clutch sisk is 8.5"
9000 turbo (1986-1990) is 9" disk and fits 900 turbo with 91-94 flywheel
9000 turbo ( 1991-1993( is 9.5 disk and i heard some people it is aon a 900.
I just orderd a new 9000 pressure plate which is the same as a the 900 91+ pressure plate. i hope this works.

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mike d

· #3 · Nov 14, 2008

your best bet is to change the entire setup to a 91-93 9k clutch,, get the flywheel, PP and disk from a 9k,, 91-93 9k has a stronger PP to that will only mount on the 9k flywheel.

i'm running a 91-93 9k clutch on my car,, although my power isn't as high as others, ive had no issues with slippage..

lastly, clean the clutch prior to install, brake clean is your friend

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900AERO

Discussion Starter · #4 · Nov 15, 2008

Thanks, but honesly i don"t think i need a 9.5" clutch. I had a 91+900 set up which uses the PP from a 9000 86-90 2.0 turbo and an 8.5" disk. and i had no issues. I think going with the 9" disc should be good enough. especially since i am looking into installing an aluminum flywheel and the 9.5 (91+ 9000 turbo clutch) will not work with the aluminum fly. plus the added weight of thr 9.5 you know?

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900AERO

Discussion Starter · #5 · Nov 15, 2008

i think my issue is bad installation/ bad pressure plate that did not seem so worn? eh. i am learning.

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