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gettin my ass kicked

Discussion in 'New to the H.A.M.B.? Introduce yourself here!' started by 1937chevyman, Sep 8, 2012.

  1. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    any thoughts on this problem. i have an under floor mount power brake system ,every thing is great till the car gets up to temp plus 15 to20 minutes ,then the brakes slowly start to apply them selves . i get it home ,the brake lights are on with no foot presure so i jack it up and the front and rear are completely locked (its a drum drum setup), ill let it set for 1/2 hour and they spin, if i roll the rear tires backwards the brake light comes on and im outside the car !! i have adjusted all the brakes and the E-brake so does anybody know what the hell is going on could it be the heat from the exhaust pipe? any help would be appriciated
     
  2. R Pope
    Joined: Jan 23, 2006
    Posts: 3,309

    R Pope
    Member

    Adjust the pedal pushrod. Get some freeplay in the linkage.
     
  3. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    it has free play when cold its about 1 1/2 play when its doin its thing its rock hard
     
  4. rat nasty
    Joined: Jul 22, 2007
    Posts: 684

    rat nasty
    Member

    sounds like a personal problem usuallly caused by too much viagra...lol!
     

  5. junkjunky
    Joined: Aug 19, 2009
    Posts: 110

    junkjunky
    Member

    You got air in your lines.
     
  6. modelamotorhead
    Joined: Dec 24, 2011
    Posts: 475

    modelamotorhead
    Member

    Since you mentioned that they are power assisted brakes, possibly the booster is leaking vacuum and causing the pedal to apply itself. Just a guess. Try disconnecting the vacuum source on the booster and see if the problem clears itself.
     
  7. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    thanks ill try the vac thing but not the viagra ,the wife would divorce me
     
  8. cmyhtrod
    Joined: Nov 29, 2008
    Posts: 360

    cmyhtrod
    Member
    from ct

    How hot is the master cylinder getting?
     
  9. 1964reo
    Joined: Aug 2, 2012
    Posts: 138

    1964reo
    Member
    from mn

    happend to a freand of mine with a 1932 roster the frmt brake lins were to colse to the exhaust system he had to move his lines away from the exhaust
     
  10. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    the master is about four inches and the rear brk line is about two inches
     
  11. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    the master isnt getting real hot i can still put my hand on it with no discomfort
     
  12. 1964reo
    Joined: Aug 2, 2012
    Posts: 138

    1964reo
    Member
    from mn

    how about the front lines how far away
     
  13. When the problem happens crack the lines at the master. If the wheels free up you probably have a bad master.


     
  14. 1937chevyman
    Joined: Sep 8, 2012
    Posts: 10

    1937chevyman
    Member

    the front are about 5 inches
     
  15. 1964reo
    Joined: Aug 2, 2012
    Posts: 138

    1964reo
    Member
    from mn

    all the brakes look up

    when the brake fuild gets hot it exspands some were it must be getting hot

    did you get the right master clynder for drum brakes

    they have driffernt residual valve
     

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