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Thread: Passenger front brake sticking on. Please help

  1. #1

    Passenger front brake sticking on. Please help

    Hi guys. I have a problem that my passenger front brake is stuck on without retracting when the brake pedal is released. The drivers is doing it a little but not as much as the passenger. It is pretty much solid. I know the calipers are fine. Rears are free. I have checked them and the sliders are all greased and doing there job properly. I have new copper lines throughout and new braided hoses. The car was originally a KR but now is a 1.8T. I bought the car with a dead engine. I have fitted 280mm discs with girling calipers and ebc green stuff pads.
    The rears are all new with a polo gti hub conversion with mk4 rear calipers.
    The only thing that is not new are the master, servo and brake proportioning valve.
    Has anyone had a similar snag? The front brakes are new and fully greased and sliding how they should. I am literally pulling my hair out now.
    Any help would be great.
    Thanks in advance.
    Rich

  2. #2
    ⋆⋆ CF Member ⋆⋆
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    24th December 2008
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    To see if the hydraulics are holding the brakes on undo the nipples on each caliper in turn, if it spurts and the brake releases you have an hydraulic issue

  3. #3
    Thanks for your quick reply. I will do that tomorrow. Do you think the proportioning valve would cause an issue or if the rigid lines were incorrectly installed in the wrong ports on the valve?
    I could with a drawing or diagram just to double check its done correctly.

  4. #4
    ⋆⋆ CF Member ⋆⋆
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    Quote Originally Posted by Dubstar81 View Post
    Thanks for your quick reply. I will do that tomorrow. Do you think the proportioning valve would cause an issue or if the rigid lines were incorrectly installed in the wrong ports on the valve?
    I could with a drawing or diagram just to double check its done correctly.
    The LPV just reduces pressure to the rear, your issue is the front

  5. #5
    Regular
    Join Date
    15th October 2008
    Location
    West Yorkshire
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    Did you remove the pistons from the front calipers prior to fitting them to check condition / replace seals?

    If not I expect they need replacing, only about £25 for a kit from BiggRed and a couple of hours to remove, replace, refit

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