Trident 95 Front Brake Master Cylinder

Discussion in 'Technical Help' started by Tony Hayden, Jul 12, 2020.

  1. Tony Hayden

    Tony Hayden Member

    Dec 9, 2019
    31
    18
    Leicester
    #1 Tony Hayden, Jul 12, 2020
    Hi Guys, What has happened? New Goodridge brake & clutch hoses fitted, master cylinders overhauled, clutch and rear brake bled but cant bleed front brakes as i cant get any fluid down to the calipers. I think the problem is with the master cylinder, yet i can see the piston moving. Any ideas! Have i reassembled the master cylinder piston wrong?
     
  2. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    #2 Tricky-Dicky, Jul 13, 2020
    Try a vacuum bleeder on it.
     
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  3. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,458
    800
    East Riding of Yorkshire
    #3 stevethegoolie, Jul 13, 2020
    Never tried rebuilding any brake cylinder, but I would suggest having another look at what you have done just in case something is out of place. I've made that sort of mistake in the past!:oops:: unamused:
     
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  4. freck

    freck Elite Member

    May 4, 2017
    1,721
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    Preston, Lancs, UK
    #4 freck, Jul 13, 2020
    Have you tried opening both caliper bleed nipples together and then slowly pulling the lever?
    If you don’t get anything out then I’d be relooking at your assembly of the master cylinder. :p
     
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  5. Rocker

    Rocker Elite Member

    May 1, 2016
    1,665
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    #5 Rocker, Jul 13, 2020
    Assuming the brake cylinder is assembled correctly (the lips on the seals need to be the right way round)
    Pump the lever really quickly to start things flowing
     
    • Useful Useful x 1
  6. Tony Hayden

    Tony Hayden Member

    Dec 9, 2019
    31
    18
    Leicester
    #6 Tony Hayden, Jul 15, 2020
    Thanks guys i will let you know what happens.
     
    • Like Like x 1
  7. Tony Hayden

    Tony Hayden Member

    Dec 9, 2019
    31
    18
    Leicester
    #7 Tony Hayden, Jul 21, 2020
    Update: Stripped the master cylinder, all ok. Turns out the master cylinder was badly airlocked, after a lot of phaffing to clear it i now have fully functioning front brakes.
     
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