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sticking front brake 700 1987

posted by  Kjartan Langskog on  Sun Oct 24 11:21 CST 2004
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last visit: Wed Jul 20 07:49 CST 2011
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I have girling calipers on my 760 wagon, UK spec., about 82000 miles. About 1500 miles ago I replaced the front brake pads. To start with, no problems. Now I have the brakes, particularly at right hand front side sticking, i.e. they don't ease off the pressure after I brake, resulting in vibration, loss of power and excessive petrol consumption.

What should I suspect, sticking pistons, jammed pads or what? And how should I correct? If it is the pistons, should I attempt to repair, or am I better off replacing the calipers (to my financial detriment no doubt).

Any useful advice is highly appreciated.
--
Kjartan Langskog








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    sticking front brake 700 1987

    uid 5008's pic
    posted by  Colin UK on  Sun Oct 24 11:32 CST 2004
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    Check the caliper guide pins for sticking.

    for details Click Here

    Colin.

    1990 740SE B200E/M47, remote C/Locking.








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      sticking front brake 700 1987

      posted by  Kjartan Langskog on  Sun Oct 24 20:11 CST 2004
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      last visit: Wed Jul 20 07:49 CST 2011
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      Thanks for your help, nice to see the UK Volvo community is alive and kicking, I will check the guide pins. Do you think it could equally be a sticking piston?
      --
      Kjartan Langskog








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        sticking front brake 700 1987

        posted by  ndesouza on  Sun Oct 24 22:11 CST 2004
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        last visit: Sun Mar 18 15:14 CST 2012
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        If you find one of the pads more worn than the other, it usually points to sticking of the floating caliper mechanism.

        Noel








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          sticking front brake 700 1987

          posted by  Kjartan Langskog on  Mon Oct 25 00:51 CST 2004
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          last visit: Wed Jul 20 07:49 CST 2011
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          Thanks. By floating caliper mechanism, do you mean the pistons? And could I repair this, or would I be best to replace the caliper?
          --
          Kjartan Langskog








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            sticking front brake 700 1987

            posted by  ndesouza on  Mon Oct 25 07:38 CST 2004
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            last visit: Sun Mar 18 15:14 CST 2012
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            No I dont mean the pistons (but you can check that these move freely too). The outer part of the caliper slides on 2 shafts. To change the pad you usually unbolt one long screw, after which the outer-part of the caliper can be hinged upwards. These shafts can sometimes get badly jammed. In my case I lubricated over a couple of hours and then took a monkey-wench slowly removed it. I then cleaned the shaft and socket thoroughly, regreased it (high-temp grease) and put it back. It's been 6 years now and it still works fine.

            I'm not a great advocate of replacing stuff unless it's broken or totally unrepairable.

            Noel







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