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pressure plate clutch disc

Discussion in 'Civic and CRX - EF' started by Ethan, Oct 31, 2011.

  1. Ethan

    Ethan Well-Known Member

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    anyone heard of the clutch being different from 88 to 90?

    i ordered this for my sisters 90 civic dx it has a d15b1 with the 4 speed trans and the clutch is too small he told me this is because i ordered a clutch for a 88 and its completely different.

    also the clutch alignment tool that came with it was for b series and was too big.
     
  2. jlicrx

    jlicrx Senior Member

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    88-91 cars came with several different clutch combinations

    all 88 transmissions have a 21 spline input shaft, so only 88 clutch discs will fit the 88 transmissions - 89-91 transmissions have a 20 spline input shaft, so only 89-91 clutches will fit the 89-91 transmissions - probably why your alignment tool wouldn't fit

    88 and 89 with D15B1, D15B2 and D15B6 engines used a 190mm diameter clutch disc and matching pressure plate - most aftermarket replacement clutches for cars with these engines will be a 200mm diameter, same as the D16A6

    88 and 89 with D16A6 engines used a 200mm diameter clutch disc and matching pressure plate

    all 88 and 89 used the same flywheel, even with the 2 different diameter clutches

    all 90 and 91 engines used a 212mm diameter clutch disc and matching pressure plate and flywheel - the 88-89 pressure plate will not bolt to the 90- 91 flywheel, nor will the 90-91 pressure plate bolt to the 88-89 flywheel
     
    Last edited: Oct 31, 2011
    2 people like this.
  3. Ethan

    Ethan Well-Known Member

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    well thanks man... you ruined my day! +rep lol
     
  4. MarcD

    MarcD New Member

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    Hi
    Your reply is clear, consistent and well-written; however, I'm easily confused!
    I just joined this great forum and posted regarding a similar clutch compatibility question:

    I have a bone-stock '91 Civic Si 5-speed with a bad diff, and have access to an '88 Si trans (ex-CRX) with a 1988 clutch disc and pressure plate, and a 1989 flywheel ($150 from the same seller)
    .
    Assuming all this data is correct, can I bolt the '89 flywheel onto my '91 engine, then install the '88 trans using the '88 clutch disc and pressure plate?

    Thank you kindly in advance,
    Marc in SF
     
  5. jlicrx

    jlicrx Senior Member

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  6. MarcD

    MarcD New Member

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    Again, a million thanks for providing clarity to a previously confusing (to me) topic. Nothing like a flow sheet!

    In all sincerity, contributions of this quality are what make forums work!!

    Regards,
    MarcD
     
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