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Thread: rear master cylinder

  1. #1
    Join Date
    Jun 2003
    --
    113

    rear master cylinder

    I cant get the inner workings out of my rear master cylinder I got the snap ring and the rod out but the piston is stuck TITE ive got it soaking in brake fluid. Any tricks.
    Its a 86 200X
    Hope the pic works
    1986 200X
    1987 250SX
    1986 125M
    1987 125M
    83 110
    1978 Ford F350

  2. #2
    Have you tried compressed air to see if that would pop it out?
    1985 350x
    1985 350x
    1985 250r
    200 auto x
    1984 250r
    1982 250r
    85 Tecate
    86 Tri Z
    85 TRI Z
    98Wolverine
    99TRX 300

    I need a 86 250r Headlight lens!!!! Hook me up!!!!









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  3. #3
    Join Date
    Aug 2003
    --
    138
    If you have another master cylinder (front master cylinders are a little easier to use for this, but either one will work) you can hook the two of them together and use hydraulic pressure to push the piston out. I've gotten more than a few stuck pistons out like that. If you can't get it out with compressed air this might do the trick for you.
    If I can't fix it, it ain't broke!!

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