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Worn brake disc causing brake to bind?

  • 24-11-2013 11:49am
    #1
    Zebbedee
    Registered Users, Registered Users 2 Posts: 450 ✭✭


    My single disc up front is worn in the middle by about 25% of its width.
    The brake started binding so I disassembled the caliper completely, cleaned and greased up all the sliding pins with copper grease and reassembled and bled the system.
    Its still binding slightly so am wondering if the worn disc could cause this.
    Anybody have this experience before?


Comments

  • #2
    arybvtcw0eolkf
    Closed Accounts Posts: 24,878 ✭✭✭✭arybvtcw0eolkf


    Did you check the pistons for corrosion?.. It might be a case that the worn disc is causing the pistons to push further out and any corrosion may be preventing them returning.


  • #3
    Zebbedee
    Registered Users, Registered Users 2 Posts: 450 ✭✭Zebbedee


    Alani Immense Dinosaur wrote: »
    Did you check the pistons for corrosion?.. It might be a case that the worn disc is causing the pistons to push further out and any corrosion may be preventing them returning.

    Sure did. The pistons were removed, cleaned and all seals intact and the pistons push out and return as normal.


  • #4
    RustyNut
    Registered Users Posts: 3,430 ✭✭✭RustyNut


    I'd be replacing a disc that was 25% worn and move on from there.


  • #5
    arybvtcw0eolkf
    Closed Accounts Posts: 24,878 ✭✭✭✭arybvtcw0eolkf


    RustyNut wrote: »
    I'd be replacing a disc that was 25% worn and move on from there.

    There ya go OP and they're really not that expensive.


  • #6
    minidazzler
    Registered Users, Registered Users 2 Posts: 14,739 ✭✭✭✭minidazzler


    Breakers will often have perfect discs ready to go for a fraction of the price.


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  • #7
    Max Headroom
    Registered Users, Registered Users 2 Posts: 7,101 ✭✭✭Max Headroom


    Take the M/C apart too...might be sticking...


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