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Caliper boot replacement S40-V40 2001

uid 5322's pic
posted by  alschnertz on  Fri Feb 19 15:54 CST 2016
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last visit: Fri Oct 24 10:32 CST 2014
[RELATED]

2001 S40

I need to replace the right rear caliper piston boot. The caliper itself appears to be working properly, but the boot is torn.

This style piston must be "screwed in" not just pushed when changing pads if that makes any difference.

I was hoping to be able to replace the boot without disassembling the entire caliper, but I'm not sure if it can be done that way. Anyone know?
If it can be replaced in-situ, are there any tips?








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    Caliper boot replacement S40-V40 2001

    uid 5322's pic
    posted by  alschnertz on  Sat Feb 20 14:20 CST 2016
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    last visit: Fri Oct 24 10:32 CST 2014
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    I took a closer look this morning in better light (and state of mind).
    I suspect there may be an issue with the caliper after all. Pulled it, cleaned it, reset the piston and reinstalled. I did find a bit of rust on the piston. Damn CT DOT and their magnesium chloride ice treatment.

    Took it out for a test ride and found the rear brake dragging after a short ride. Opened the bleeder and got fluid out so I don't think it is a failed flex hose.

    Thinking of rebuilding as opposed to a reman unit. Repair kits are available from Tasca.








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      Caliper boot replacement S40-V40 2001

      posted by  KlausC on  Sun Feb 21 15:46 CST 2016
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      last visit: Fri Oct 24 10:15 CST 2014
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      The repair kit is just a dust boot and the rubber piston ring. If the piston or cylinder is pitted, I would say to get a new caliper. Cleaning with a Scotch brite pad is OK, but it really needs to look like new before dousing it with brake fluid.

      When you reseated the piston, did you seat it all the way down? I am surprised that your pads rubbed unless there was some air in the caliper.
      --
      Keeping it running is better than buying new








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      Caliper boot replacement S40-V40 2001

      posted by  B.B. on  Sun Feb 21 08:38 CST 2016
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      last visit: Mon Oct 6 13:15 CST 2014
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      Don't forget that you have the rear E-brake shoes that can be set too tight.








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        Caliper boot replacement S40-V40 2001

        uid 5322's pic
        posted by  alschnertz on  Sun Feb 21 15:01 CST 2016
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        last visit: Fri Oct 24 10:32 CST 2014
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        Good point, but actually, the parking brake on this model activates the caliper.
        There are no separate shoes.

        Appreciate the thought though, thanks.

        I'm going to roll the dice and hope I can rebuild it for $35 as opposed to purchasing a new caliper from Volvo @ $160 or so. Rebuilds seem to be going for around $110, so I'll probably not go that route.







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    Caliper boot replacement S40-V40 2001

    posted by  KlausC on  Sat Feb 20 11:18 CST 2016
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    last visit: Fri Oct 24 10:15 CST 2014
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    So long as the piston seal is in good shape, I see no reason why the dust boot cannot be replaced by itself. It may be a bit tricky getting the old one out and the groove cleaned nicely with the piston still in place.
    --
    Keeping it running is better than buying new








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    Caliper boot replacement S40-V40 2001

    posted by  B.B. on  Sat Feb 20 02:51 CST 2016
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    last visit: Mon Oct 6 13:15 CST 2014
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    Have you located a caliper rebuild kit? The manufacturer may have instructions?
    this might help:
    http://volvospeed.com/volvo_repairs_how_tos/brake_calipers_rotor_pads/rebuilding_volvo_caliper.html

    Bill







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