Shimano BRM 535 caliper issues?

instantdiver
instantdiver Posts: 36
edited May 2014 in MTB workshop & tech
Hi,
friend of mine has these brakes. Recently, after an issue with one of the front pads falling off during a ride, the front brake was full of air (no issues prior to this). I bled it for him and all seemed well. However on getting the bike back home the brake was full of air again. Now he reckons there's no sign of leaking oil, so any ideas what might cause these symptons before I try and bleed it again?
Boardman Team carbon LE #077
2008 Rockhopper Pro

Comments

  • cooldad
    cooldad Posts: 32,599
    Old and leaky.
    I don't do smileys.

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  • The Rookie
    The Rookie Posts: 27,812
    If the pad came out then there is a good chance the piston came out too far and damaged the seal, or even the calliper bore.

    Is the brake full of air or just feel like it, there are a number of things other than air that can feel like it needs bleeding.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.

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