275 GTB/4 brake booster | FerrariChat

275 GTB/4 brake booster

Discussion in 'Vintage (thru 365 GTC4)' started by airborne, May 27, 2017.

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  1. airborne

    airborne Karting

    Feb 19, 2013
    58
    Northern VA
    I need to rebuild my booster and master cylinder.
    Questions:
    1.) What is the correct method of removal? It does not appear that a normal human can access all of the nuts/bolts to release the booster or master insitu. Is the correct method to remove the bracket along with the pedal assembly after removing the clutch master?

    2.) Recommended shop for rebuild? Karps? Motion Products?

    Thanks much gents
     
  2. prance

    prance Formula Junior

    May 4, 2005
    513
    Agoura Hills
    Full Name:
    morris
    Karps for sure. They have worked on all of mine and are the best.
     
  3. enio45

    enio45 Formula 3
    Rossa Subscribed

    May 16, 2004
    1,538
    Gilbert, AZ
    Full Name:
    Ed
    Karps does booster as well??
     
  4. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,239
    Frederick, Maryland
    Full Name:
    Brian Brown
    You unscrew the four nuts holding the booster to the mounting bracket remove the cotter pin from the pin on the actuating rod. It's not easy to do. I work from the engine compartment and through the access opening at the rear of the left inner fender panel.

    You will need some special shaped wrenches ( S-shaped, C-shaped, Self-racheting) in order to remove the nuts.

    The master cylinder and booster come out as a unit.
     
  5. prance

    prance Formula Junior

    May 4, 2005
    513
    Agoura Hills
    Full Name:
    morris
    Yes, they do and they understand these boosters very well and do a great job.
     
  6. airborne

    airborne Karting

    Feb 19, 2013
    58
    Northern VA
    I appreciate the info!
     
  7. steve meltzer

    steve meltzer Formula 3

    Sep 18, 2004
    1,046
    with Enzo 8995
    I did the power brake booster on my 330 GTC and it too, like Brian said, was tough. I also approached that 4th nut from inside the left front fender well. Notta job I want do to again.
    I think that Karp sold to someone else, but can't be sure. Might check Tom Yang's site for more specifics. I used Power Brake Exchange and was very, very happy with them. Fast turnover, excellent work, looked great and more than fairly price. (and they give me $2.18 for every referral!)

    Power Brake Exchange pwrbrake.com 408-292-1305
    260 Phelan Avenue San Jose California 95112

    steve
     
  8. airborne

    airborne Karting

    Feb 19, 2013
    58
    Northern VA
    Quick update - received my MC and servo back from Karps. They did a terrific job.
     
  9. enio45

    enio45 Formula 3
    Rossa Subscribed

    May 16, 2004
    1,538
    Gilbert, AZ
    Full Name:
    Ed
    What was the turnaround time?
     
  10. airborne

    airborne Karting

    Feb 19, 2013
    58
    Northern VA
    About five weeks for both with plating, powder coating and shipping to east coast
     

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