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  1. #1
    mtbr member
    Join Date
    Oct 2011

    Rebuilding Shimano BL M585 Deore LX master cylinder

    I have a set of these on my 26" HT, they have been good brakes and I don't want to replace them but, my rear brake has begun to leak mineral oil at the lever. I assume a rebuild would fix the issue but I can't find any parts listed anywhere. I seem to remember these were supposed to be the same mechanically as the XT of the era(2005ish), any thoughts as to what I can do to salvage these brakes, thanks in advance.

  2. #2
    mtbr member
    Reputation: Wombat's Avatar
    Join Date
    Jan 2004
    Shimano doesn't list any internal parts for that brake lever:

    Could it be leaking from the hose? If so try tightening it and if that doesn't work shorten it slightly and put in a new olive.

    If all that fails get another lever. Shimano says all their levers are cross compatible, and you can find them for around $25. Just make sure they have the same style hose fitting (in your case inline rather than banjo).


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