Rear brake compensating valve leaking

Discussion in 'Mech Tech' started by Skyelectrix, Jul 11, 2019.

  1. Please can anyone offer any help/ advice. Following on from my dodgy rear brakes and a leaking master cylinder I’ve also noticed a very very slight drip from the compensating valve when the pedal is pressed really hard. Is there a way of rebuilding these as I’m pretty sure they are NLA! thanks in advance!
  2. Yes NLA, but you can fit the later T25 one which is still available with a bit of tweaking of the brake lines.
    Brake compensator.jpg
    Skyelectrix likes this.
  3. Nice one! Is it a bolt on job?
  4. No, strap on.
  5. Ok thanks @snotty so I just make up a strap to fit onto the existing chassis mount or is there a correct bracket?
  6. It was a bad joke, actually. I'd imagine it's bolted on like the old one.
    JamesLey likes this.
  7. Haha! Get it! Sorry it is late and well past my bedtime just trying to get this all sorted so I can take my kids away in the bus they think will always live in the shed!!! I will get my sense of humour back once I finish the van!!
    Valveandy and snotty like this.
  8. Does it matter which way round the pipes connect on the old style one?
  9. Guessing, but I'd imagine so, as the thing effectively has an input and a regulated output (and a ball on a spring).
  10. Bu99er. It's really not obvious.
  11. BrakeBiasValve_zps95aee2b7.jpg
    Mark Darby, snotty and nicktuft like this.
  12. Could you not swop it out for a new adjustable version ... wilwood do one ? Not ideal and would need setting up but is an option ....
    I’m fitting a wilwood one to the 914
  13. Parts god @davidoft has one so just got to wait and see if he can find it in time!
  14. I’ll check out the wilwood one, do you have a link please Steve?
  15. @Skyelectrix electrix, strip it and clean it and reseal, it will be fine. i did that to mine and Simon @1973daisey has just done his.
    Last edited: Jul 12, 2019
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  16. Yes ASAP mine was for ages eventually the ball bearing locked up jamming back brakes on after a few miles [​IMG]
    Half hour job just bleeding brakes

    Sent from my iPhone using Tapatalk
    pkrboo likes this.
  17. Iv now got actual brakes makes a huge difference

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  18. I took mine apart and cleaned it made a big difference the amount of gunk in it was unbelievable.
    pkrboo likes this.
  19. How is this resealed? New o ring thingy?
  20. i tok mine apart and the gasket was still intact so used a bot of gasket sealer thin smear on both sides and put it back together. been fine ever since, 9 years ago!!

    i thin there are pictures in my build thread

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