504 Sticking Handbrake
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  1. #1
    Fellow Frogger! sparkey's Avatar
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    Default 504 Sticking Handbrake

    Any suggestions how to rectify sticking handbrake on '78 504 (driver's side seems to be most affected).

    Sparkey

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  2. #2
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    Quote Originally Posted by sparkey
    Any suggestions how to rectify sticking handbrake on '78 504 (driver's side seems to be most affected).

    Sparkey
    Maybe the cable is stretched beyond it's adjustable limit? I'm assuming you've already gotten underneath and had someone operate the handbrake so you can see what it's doing...

  3. #3
    Fellow Frogger!
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    Default 50 cent fix

    I had that problem for a long time, bloody nuisance it was too. Wildebeest supplied the remedy, simple and effective Place a little expansion spring over the end of the brake cable were it joins the caliper, it must exert enough extra force to release the brake, quick cheap easy and works a treat. regards cane toad

  4. #4
    Budding Architect ???? pugrambo's Avatar
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    it also has something to do with certain brands of pads

    i have been through this quite a few times over the years and the best solution was to lubricate the nylon blocks the actuator runs on and to change the rear pads

    also try to avoid using the handbrake on hot discs if possible

    the other thing is 604's don't seem to suffer this fate nor later 505's
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  5. #5
    Tadpole
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    Default ozkiwi

    fix it properly assuming cables are ok
    remove caliper strip it clean everything in white spirits replace seals
    lubricate allmoving parts with copperslip grease (not rubber piston seals)
    assemble unit your troubles are over it is a very simple procedure when i was
    working at peugeot in the 70's it was a common problem

  6. #6
    1000+ Posts Shobbz's Avatar
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    Quote Originally Posted by ozkiwi
    fix it properly assuming cables are ok
    remove caliper strip it clean everything in white spirits replace seals
    lubricate allmoving parts with copperslip grease (not rubber piston seals)
    assemble unit your troubles are over it is a very simple procedure when i was
    working at peugeot in the 70's it was a common problem
    I was doing this today and yesterday.

    Definately strip down the pistons, and clean the gunk out. My brake fluid is less that 8months old, still some sludge there. Pop off the little cap and give that an allmight clean, lots of gunk in there as well. I also soaked my rachet piston over night in brake fluid, got rid of some nasty stuff as well.

    I agree with the no rubber grease, its not good, and appears to harden over time. I used it under the seals on the outside of the pistons = crap.

    What is copperslip grease? I have finally got my handbrake working today, anything i can do to keep it working is appreciated

    I use brake fluid as a cleaner, but i guess that white spirits is a better cleaner.

    shobbz
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    1975 504 GL

  7. #7
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    Ozkiwi is right - assuming the cable system is not siezed you need to dissassemble the caliper hand brake mechanism (N.B. this proceedure is not in the manual) not difficult with a little thought and some simple hand made tools (took me 15 mins. to strip one down. If any one is still unsure I can post photos on forum showing the "explosion" I still have a container of parts from when this was on previous forum - search for post by froggy member "shobbs" for detail in need. May need to post information on technical thread ?

    NIMBIN

  8. #8
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    Shobbz
    You slipped in whilst I was typing my post.
    Seeing you are so close - Nimbin is not far away 2.5 Hrs from Brisbane why don't you drive down and I will show you ( even do it for you ) how to fix your callipers once and for all.
    NIMBIN

  9. #9
    Gone Fishin' Ray Bell's Avatar
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    There's a silicon lubricant that's better than rubber grease... used in caliper assembly all over the place...

  10. #10
    Fellow Frogger! sparkey's Avatar
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    Default

    thanks for all those suggestions.

  11. #11
    Fellow Frogger! 123abc's Avatar
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    Default

    sometimes to the little thread on the ratchet things gets mauled by heavy handed mechanics who try to compress the cylinder to fit new pads, mine had that problem when i bought it.

    i still carry a brick in the boot, oneday ill get around to it.

    this is the rarest of reasons, but its still a possibility.

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