Scatch servo conversion...

Discussion in 'Mech Tech' started by vanorak, Oct 16, 2013.

  1. Hi...just looking into the practicalities of converting to servo-assissted brakes, using Brazilian bay parts...
    Aside from the obvious components (see below), does anybody know what additional parts will be necessary?

    Servo unit & mounting bracket
    Master cylinder and reservoir
    Hoses, fasteners and couplings
    Manifold take-off

    Does the stock (non servoed) brake pedal need to be modified or is there sufficient adjustment in the pushrod, to suit?
    Thanks in advance....
     
  2. You'll need the longer m/c pushrod as well.
     
  3. Vielen Dank, Mein Snotty....same pedal?
     
  4. Zed

    Zed Gradually getting grumpier

    Same pedal, you might have to extend the new push-rod by an inch, or might not. You do on earlies, might have to on crossovers and don't think so for lates.
    Non-return valve and
    Extend wiring to brake switch(es)
    Brake lines I re-shaped what was there last time without even making off any ends and it came out very neatly if I do so so myself.
    You might as well make the bracket for the beam from scratch - for the brazillian servo mounting stud pattern the holes would all be half off the edge of a og bracket.
     
  5. I may have what you want - albeit second hand meine fuhrer!
     
  6. You'd need the gayest most flaccid legs to want to spend that much!!
    :)
     
  7. Didn't have you pinned as both Sexist and Legist Joker....

    Thanks @zed ...there's a guy knocking universal brackets out on fleabay for £15 (bargain by my reckoning)

    Servo c. £80, M/Cyl c. £50 Reservoir, Non return valve, hoses, fluid etc. £80 +
    Hassle factor...moderate....All in for around £250 or thereabouts....cheaper if I can find decent secondhand bits


    @Dicky ...what bits dost thou haveth?
     
    Last edited: Oct 16, 2013
  8. Zed

    Zed Gradually getting grumpier

    The brazil servo,a M/C, reservoir and non-return valve are about £155 at JK prices.
    £5 for a manifold fitting
    £20 for a push rod
    £30-£40 for pipes and clips?
    £220 DIY is as cheap as chips. It's making the bracket, extending the push-rod that takes the time, and painting them, re-routing brake pipes and refixing them, extending the pipe between reservoirs, running the vac hose (I forgot grommets £4 - best route is through the two cross-members), removing the carb/manifold to fit the fitting (don't forget a new gasket), rebalancing the carbs, re-routing the wiring and bleeding the brakes.
    A day and a half to make a nice job of it. A day to slap it in.
     
  9. I have a 2nd hand late servo (which may work or may not!) If I recall it has push rod and master cylinder attached to it and has been stores in my garage ....forever! Bought as a second hand good one when they were hard to come by. I recall paying over the odds for it and then fixing the problem without using it. Is it worth rebuilding a master cylinder for the cost though. Brazil servo and m/c seems very cheap and... much newness. Think progressive manifolds have servo takeoff as standard but could be wrong!
     
  10. Ooooh!....bet you're going to get some PMs after announcing that @Dicky:D ....Rebuilding a M/cyl is pence by comparison...I'll have a moochy on the net about refurbing Servoes...are you interested in parting company with it....or should I switch to covert conversation mode?:thinking:
     
  11. Zed

    Zed Gradually getting grumpier

    My own one - I got a servo and m/c with reservoir on ebay for £45, some pipe etc and did the job for less than £100, the manifolds had a balance pipe which I tapped into for the vacuum.

    But the master cylinder started leaking after a few months and had to be replaced. With hindsight I'd go for new bits as they're not very expensive.
     
  12. Whichever - usual trading rules apply!
     
  13. mk2 golf non gti servo and master cylinder £20 of ebay have a long pushrod made servo to pedal to suit lenght by local machine shop, plastic plumbing hose from diy store for vacuum pipe front to rear, 1 way valve from scrap yard and rubber vac hose from motor factors and your done :thumbsup: £50 and a bit of elbow grease and your sorted
     
  14. Zed

    Zed Gradually getting grumpier

    That'll teach me not to look.:rolleyes:
     
  15. Zed

    Zed Gradually getting grumpier

    Brilliant Dicky! Turnkey.
     
  16. Bracket as well - even i didnt expect that!
     
  17. Zed

    Zed Gradually getting grumpier

    And the reservoir connection pipe. :thumbsup: When it's all together like that chances are high it's a good one - you wouldn't scrap a van because it had brake problems.
     
  18. Fingers crossed!
     

Share This Page