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caliper disassembly

Discussion in 'XJ Modifications' started by amw_yo, Apr 8, 2007.

  1. amw_yo

    amw_yo New Member

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    i have a frozen caliper on my 86 XJ700S and need to rebuild it but i was wondering if there was any alternatives to using compressed air to eject the pistons?
     
    amw_yo, Apr 8, 2007
    #1
  2. RickCoMatic

    RickCoMatic Well-Known Member

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    When I encounter Caliper Pistons which resist being moved by the bikes own Master Cylinder ... or, getting hooked-up to an air line ... I wrap the whole thing up in a nice clean rag ... take it with me ... and, go get coffee.

    I leave Duncan Donuts with a:
    Large, Hot, Black -- with Cream, Sugar and Sweet-'n-Low on-the-side.
    Next stop. Midas Brake Shop.

    You look for the guy doing the ball-buster brake job ... and, place the coffee and all the fixin's together so that the offering is a visual image from Heaven.

    Then, you say: "God told me to bring you this large hot black with cream and goodies on-the-side and you'd show me the ways of freeing the stuck caliper piston!"

    This technique has a 97.5 Percent success rate.
    If you encounter someone, from the other 2.5 Percent, who has a worse situation than you ...

    Just leave the coffee and ...

    Run!
     
    RickCoMatic, Apr 8, 2007
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  3. amw_yo

    amw_yo New Member

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    nicely done, i will head down to the donut shop in the morning and i'm off to the brake shop!
    thanks!!
     
    amw_yo, Apr 9, 2007
    #3
  4. schmuckaholic

    schmuckaholic Well-Known Member

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    LOL!
     
    schmuckaholic, Apr 9, 2007
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  5. Chared03HD

    Chared03HD Member

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    I'll have to remember that one..... good thinking!!

    I wish I'd have read this about a week ago, I used water preasure to remove mine. The calipers had already been removed from the bike by the previous owner, and air didn't cut it. So I fab'ed up a coupler and apllied water preassure via hydrolic hand pump and 500psi & 300psi later they pumped right out!!

    Wish I'd have thought of the previousluy stated method!! :lol:
     
    Chared03HD, Apr 9, 2007
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  6. xjyamaha

    xjyamaha Member

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    Hook them back up to the master cylinder and use the brake fluid to pump them out. Took me a little while but it did work. I also did have to pull a little on them with a vise grip, any padding you can put between the piston and the teeth is HIGHLY recommended.
     
    xjyamaha, Apr 9, 2007
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  7. amw_yo

    amw_yo New Member

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    i finally got one piston to release but just can't seem to make the other one budge, can anyone think of a solution to this short of taking it to the brake man.
    p.s. i used the mastercylinder to push the one piston out
    thanks
     
    amw_yo, Apr 18, 2007
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  8. Alive

    Alive Active Member

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    Put the piston you just got out back in (with brake fluid to lube it for removal later), G-clamp it in place and use the master to get the other one out :)
     
    Alive, Apr 18, 2007
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