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Thread: Residue on front disc, how to remove?

  1. #1
    Join Date
    14th October 2003 - 11:53
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    BMW R100GS
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    Hamilton
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    4,576

    Residue on front disc, how to remove?

    So pulled the front wheel off the PD over the weekend. I found a white residue all over the front disc.

    I have no idea what it is off but have 2 theories. Either it's from something I rode through on Friday while doing the CCA pre ride like wet clay or something, or it's something thats leeched out of the pads.

    Bear in mind I fitted a RF900 caliper to the PD last year which was supplied with used pads. I have no knowledge of the history of the pads except they came from a wrecker so were quite possibly off a wreck.
    Whether they have at some time had any sort of brake fluid/oil whatever soaked into them I wouldn't know but I've always though the upgrade didn't give as much improvement as people overseas have claimed.

    I am fitting new pads this week and before I do I want to remove the residue properly. Aside from rubbing the disc down with a clean rag is there anything I can use on the disc that will evaporate cleanly and leave no residue and not put my life in danger everytime I use the brakes, or stuff my new pads?
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  2. #2
    Join Date
    18th May 2005 - 09:30
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    '08 DR650
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    5,255
    Brake cleaner?


  3. #3
    Join Date
    18th February 2007 - 22:47
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    RATS & RICE
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    Normally I use Brake cleaner (CRC) failing that some Kerosene in a spray bottle will work well ,I have never had any trouble with it

  4. #4
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    5th February 2008 - 13:07
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    Go for a cane and do some stoppies?

    Steve
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  5. #5
    Join Date
    27th September 2008 - 18:14
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    CRC brakleen part number 5089.
    I mentioned vegetables once, but I think I got away with it...........

  6. #6
    Water soluble or oil soluble? If it's water soluble (clay),wash it off with water.If it's oil soluble wash it off with brake clean....or stoddard solvent.

  7. #7
    Join Date
    4th October 2008 - 16:35
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    Wellington
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  8. #8
    Join Date
    1st March 2007 - 11:30
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    2014 R1200 GS, 2007 DR 650
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    or steel wool
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