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  1. #1
    mtbr member
    Join Date
    Oct 2009

    need help from people who know Marta's reasonably well

    My new old stock Marta was kinda dragging in the rear. (pads weren't retracting well)
    I thought I'd loosing them up a bit by using the Marta trick where you hold one side of the piston in and then cycle the brake to push the other piston out. And repeat.

    I accidentally went too far the oil starting coming out from behind the rubber diaphram on one side of the caliper.

    I quickly grabbed a screwdriver and pushed it back in, but it took alot of force and felt like I might have broke something.

    Did I ruin my caliper? I'm not really sure how those pistons sit in there and if I messed it up by forcing it back in.

    Thoughts? They both still move, but I lost some oil and probably introduced some air into the system so I can't quite tell if they're o.k. or not.

    Please help!

  2. #2
    mtbr member
    Join Date
    Aug 2006
    you might have contaminated/damaged the seal, and or the piston. the best thing to do is a re-bleed. if it seems to be to hold pressure remain dry etc, then you've hopefully got away with it.

    if not you might be looking for a new caliper. magura don't do seal kits.

    good luck.

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