really, REALLY hard brake pedal on MndialT | FerrariChat

really, REALLY hard brake pedal on MndialT

Discussion in 'Mondial' started by russlv, Jun 9, 2012.

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  1. russlv

    russlv Karting

    Feb 29, 2012
    63
    las vegas, nv,
    Full Name:
    Russ Lorenzen
    #1 russlv, Jun 9, 2012
    Last edited: Jun 9, 2012
    I just brought my '91 MondialT out of storage, and now feel like I have to be
    an olympic body builder to push the brake pedal down. The car stops ok, but
    the presure required is A LOT! I checked all four corners and everythink looked ok.
    The fluid level in the master is good with no leaks. I'm thinking taht maybe the
    booster has gone south. Any idea on how to test it would be helpful.

    Thanks,

    Russlasvegas
     
  2. PV Dirk

    PV Dirk F1 Veteran

    Jul 26, 2009
    5,401
    Ahwatukee, AZ
    I know on the 3.2 there is a vaccum check valve right by the engine that comes off the intake manifold. The line then runs all the way to the front to the booster. If that valve is stuck we get a similar issue. If your car has the same bit that might be a first place to check. I took mine off the car cleaned it and it works much better. Initially mine still mostly worked but did the hard brakes sometimes when I first fired it up after sitting. After cleaning it, no problems.
     
  3. tbakowsky

    tbakowsky F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    19,948
    The Cold North
    Full Name:
    Tom
    your accumulator pressure ball is shot...
     
  4. russlv

    russlv Karting

    Feb 29, 2012
    63
    las vegas, nv,
    Full Name:
    Russ Lorenzen
    Hi,
    I looked at the parts list and I'm quessing that I need accumulator kit part # 700000504.
    Is that the part that you feel might need replacement? Any thoughts on where to get it,
    or is not a diy type project?
    Thanks,
    Russlasvegas
     
  5. tonymondial

    tonymondial Rookie

    Sep 25, 2024
    10
    Full Name:
    antonio dizazzo
    hi, did you fix your problem? If so, where did you find the parts? I'm having the same problem.
     
  6. gsfent

    gsfent Formula 3

    Nov 16, 2009
    1,101
    PB County, Florida
    Full Name:
    Jerry
  7. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    3,601
    Central Florida
    12-Year-Old post, he's come and gone for sure!
    Alden in
     

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