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Brake pressure regulator replacement??

Discussion in 'Steering, brakes & Suspension' started by Farky66, Sep 12, 2013.

  1. Farky66

    Farky66 Member

    Messages:
    275
    Location:
    Adelaide
    Hey folks,
    By the looks of it my brake pressure regulator looks like the rustiest thing on my bus and could do with replacing. Have looked around the internet and cannot seem to find anywhere selling them. Was just wondering if there are any alternatives, ect?

    Also just wondering if someone can give me a bit of info about them as i still dont know 100% what they do?


    Thanks
    Lochie
     
  2. Mordred

    Mordred Super Moderator Staff Member

    Messages:
    3,012
    Location:
    Penna, Hobart
    It is used to reduce the pressure to the rear wheels to stop them locking when you decelerate suddenly. It has a valve inside that reacts to the deceleration is cast iron of the vehicle, as the weight and C of G moves forward and on to the front wheels, resulting in less weight over the rear wheels and they will tend to lock up. It is made of cast iron and if you are that worried about it, pull it out and paint it. I reckon every one you will find will be rusty as well.

    Adrian
     
  3. 1500king

    1500king Well-Known Member

    Messages:
    1,683
    Location:
    Adelaide, SA
    Yep, agree..

    I have a new one, but it would look the same as yours on the outside after a year on the car... As Adrian said, they are just a proportioning valve where it distributes fluid pressure between front/rear according to how much force is applied at the pedal. SOme are fixed rate(like the Kombi one) , others are connected to the suspension to measure the shift in weight.
     
  4. Farky66

    Farky66 Member

    Messages:
    275
    Location:
    Adelaide
    Thanks for the info Adrian and Andrew! I was a bit worried they had small internal parts/seals that may be a bit dodgy over time. Im guessing they dont, and my back brakes dont lock up when I brake suddenly so im guessing mine is still in working order. Next time i have a bit of time i will take it off and give it a bit of a clean and a paint.

    Thanks for the replied,
    Lochie
     
  5. chris taylor

    chris taylor Well-Known Member

    Messages:
    3,068
    Location:
    adelaide sth aust
    Hi 1500, what price would you put on this regulator, mine is weeping and I have two choices, replace or by pass, not sure which way to go. Regards chris
     
  6. 1500king

    1500king Well-Known Member

    Messages:
    1,683
    Location:
    Adelaide, SA
    they can be repaired.
     
  7. chris taylor

    chris taylor Well-Known Member

    Messages:
    3,068
    Location:
    adelaide sth aust
    Thanks 1500 king, yes I had mine repaired but also I had both Rr wheel cylinders replaced as well as they were suspect {as in weeping} and I wasn't about to take any chances for the sake of a few dollars, brakes are now beautiful .Chris:)
     
  8. rstucke

    rstucke Well-Known Member

    Messages:
    1,947
    Location:
    Wamberal NSW AUS
    hi 1500king
    Do you know where to get the parts from to repair these?
    I'm having trouble locating master cylinder seals as well.
    Any info would be much appreciated.
    Cheers
    Rick
     
  9. oldman

    oldman Super Moderator Staff Member

    Messages:
    10,988
    Location:
    Avalon Beach NSW
    For what it's worth, get a price from a brake/clutch specialist to refurbish……
    I had a lowlight master cylinder cleaned/stripped/re-sealed/tested for under $150.00….as good as new.
    Better than a replacement as the brake line take-offs from repro's are in different positions to the OEM units.
    They could, more than likely, do the same for the bp regulator.
    Cheers,
    Mark
     
  10. rstucke

    rstucke Well-Known Member

    Messages:
    1,947
    Location:
    Wamberal NSW AUS
    Not happy with anyone touching my brakes. Spent too much time in the Automotive training industry to trust those that pass as mechanics these days.
    Anyway I found the master cylinder kit I needed If anyone is interested it's PBR k7656x . new/old stock from a guy in Coffs Harbour. My original master cylinder came up like new.
    Still looking for a proportioning valve kit.
    Any help would be appreciated.
    cheers
     
  11. chris taylor

    chris taylor Well-Known Member

    Messages:
    3,068
    Location:
    adelaide sth aust
    Had mine repaired or reconditioned , works like a new one, no more double brake pedal and brakes are as good as new.
     

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