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bad master cylinder?

Discussion in 'The Hokey Ass Message Board' started by scott86, Aug 22, 2009.

  1. scott86
    Joined: Jul 18, 2009
    Posts: 25

    scott86
    Member
    from Quincy, Il

    So I finally got my first project and couldn't be happier. Its a 52 Pontiac Cambridge. All original and in pretty good shape. But the problem I'm having is when I got it home it had no brakes, narrowed it down to a bad wheel cylinder. So I replaced that, and after I bled it the pedal still goes all the way down and has no pressure. So I bled all the others and its still the same. All of the hard and rubber lines were replaced prior to me getting it. And when I try and bleed it it hardly moves any fluid. So I'm thinking bad master cylinder, which was supposedly replaced but doesn't look like it at all. Any opinions?
     
  2. Hubbcat
    Joined: Oct 15, 2002
    Posts: 561

    Hubbcat
    Member
    from Sweden

  3. retromotors
    Joined: Dec 10, 2008
    Posts: 1,045

    retromotors
    Member

    Pontiac Cambridge?
    I thought that was a Mopar (Plymouth) model designation.
     
  4. scott86
    Joined: Jul 18, 2009
    Posts: 25

    scott86
    Member
    from Quincy, Il

    Yea, you're right. Its a Plymouth. Not sure why I typed Pontiac. And yes, I do plan on replacing it. Just wanted another opinion or if something else could be causing this.
     
  5. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    Quite possiable the piston in the MC is not returning all the way due to rust/mung etc in the cylinder bore. Pull the rubber boot back and see if the piston is back all the way ot the snapring whatever holds it in. If it is make sure the pushrod to the pedal has a bit of free travel. Either would cause it not to bleed out corectly.
     

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