Brake issues on holiday.

Discussion in 'Mech Tech' started by Betty the Bay, Sep 2, 2019.

  1. Betty the Bay

    Betty the Bay Supporter

    That's my theory...but of course the wife says it all my fault for catching the kerb !
     
  2. 77 Westy

    77 Westy Supporter

    Check the diameter of the drum – the adjusters are too far out for new or nearly new shoes. The cylinder didn’t cause the lining to be detached IMO.

    Personally, I wouldn’t buy safety critical parts from JK unless they are from a known reputable manufacturer. And of course, if you ask JK they will tell you they’ve never heard of a problem.
     
    Razzyh, Betty the Bay and JamesLey like this.
  3. Betty the Bay

    Betty the Bay Supporter

    The drums ( I think ) are original, but in good condition, will measure them ..have you a measurement that they should be?
    Was wary of changing because of all comments on here about poor quality replacements.
    Could anything else cause the over adjustment, such as a worn spreader bar?
     
  4. Betty the Bay

    Betty the Bay Supporter

    @77 Westy ...just measured...10 inches in old money.....wish it was the reply to the Sausage thread !
     
  5. Betty the Bay

    Betty the Bay Supporter

    Photos of new /old.[​IMG][​IMG]

    Sent from my SM-J330FN using Tapatalk
     
  6. Betty the Bay

    Betty the Bay Supporter

    Seriously considering taking the new shoes purchased from JK and getting Ferodo to put some proper material on attached with something other than double sided tape!
    If I can get it done, I'll let you all know cost etc.
     
    paradox and Lasty like this.
  7. Betty the Bay

    Betty the Bay Supporter

    Just checked in Bentleys, drum is at wear tolerance and amazingly thickness of brake lining is as per spec. at 6mm.
    Would it be worth having slightly thicker linings fitted if I go down that route ?
     
  8. 77 Westy

    77 Westy Supporter

    I wouldn’t do that; if the parts are within spec, they should fit okay. It looks like something is wrong to me, but I don’t know what. Wrong shoes? Wrong slave cylinder?
     
    snotty likes this.
  9. Betty the Bay

    Betty the Bay Supporter

    I'm one of the one year only rear brake brigade..they have always worked fine...until the glue decided to come unstuck.
    Thought an extra 1mm thickness might make up for the drums being at the maximum of wear tolerance.
     
  10. 77 Westy

    77 Westy Supporter

    If the drums are at maximum diameter, I’d replace them, but I wouldn’t buy them from JK.
     
  11. Betty the Bay

    Betty the Bay Supporter

    Presumed they would all probably come from same ( Chinese ) manufacturer.
    Any recommendation from personal experience?
     
  12. 77 Westy

    77 Westy Supporter

  13. mikedjames

    mikedjames Supporter

    I used JK drums until I warped them by misadjusting the handbrake. Seemed pretty generic but ended up with severe adjustment issues.


    The other possibility before heading off into expensive solutions( that dont seem to be needed by anybody else.) is that the slave cylinders are too short for the application - hence the adjusters being observed as being wound a long way out for new shoes...

    Yes they are VW fit cylinders but maybe from front dual cylinder drums rather than rear single cylinder drum brakes..

    Then coupled with the drum wear, the pistons just popped under heavy braking..


    Remember step 1 of the engineers fault finding guide which asks "did you change something" to which the answer here is "yes : the slave cylinders" .. the coffee cup version then insults you as that is then the most likely cause...
     
    pkrboo likes this.
  14. Betty the Bay

    Betty the Bay Supporter

    The brake cylinders if incorrect, are the same as have been installed on the van for the last 10 years, the brakes have been fettled twice by specialists both of whom I trust and didn't raise any concerns.
    The drums are original VW ones, I'm having them checked out for wear and to ensure they are within tolerances by an engineer next week, then I am having Mintex lining material bonded on to the JK shoes by a specialists company.
    Bearing in mind how long rear brake shoes SHOULD last, I will probably have given up driving ( possibly breathing) by the time they need replacing.
    At less than £20 a shoe, I don't consider it a bad investment.
     
  15. Betty the Bay

    Betty the Bay Supporter

    Final question as I can't find an image of the one year only rear brakes assembly.
    Does this look correct? Only asking because a sketch I had done at some point, showed the Handbrake lever attached at the second hole down on the shoe.
    Cheers.[​IMG][​IMG]

    Sent from my SM-J330FN using Tapatalk
     
  16. 77 Westy

    77 Westy Supporter

  17. 77 Westy

    77 Westy Supporter

    Betty the Bay likes this.
  18. Betty the Bay

    Betty the Bay Supporter

  19. Betty the Bay

    Betty the Bay Supporter

    Just been over to get the brake shoes re-lined..proper old school workshop.
    They even popped a few rivets in because I told them that the old linings had separated from the shoes...to give me peace of mind!
    Well impressed. [​IMG]

    Sent from my SM-J330FN using Tapatalk
     

Share This Page