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Front Caliper issues?

Discussion in 'XJ Technical Chat' started by Kishkumen, Jul 10, 2007.

  1. Kishkumen

    Kishkumen Member

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    It started to rain, and I decided to push the motorcycle under the carport. It feels like the front caliper is holding, then releasing, then holding, then releasing... on and off... It was a witch w/a capital "B" to push.... What's wrong?
     
    Kishkumen, Jul 10, 2007
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  2. RangerG

    RangerG Member

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    Sounds like a warped rotor. My caliper was dragging too, but it was pretty constant. Mine was fixed by cleaning the caliper piston, sleeve and master cylinder. Yours sounds like something is bent.
     
    RangerG, Jul 11, 2007
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  3. Kishkumen

    Kishkumen Member

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    Yeah, strange, though, cause it was fine until I removed the caliper and put it back on....
     
    Kishkumen, Jul 11, 2007
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  4. Chared03HD

    Chared03HD Member

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    I'll agree with RangerG on the warped rotor, or you could have some build up (corosion) on you caliper slide pin. I'd clean and check that first!! Have you rebuilt the calipers lately? If not.... maybe it's time!
     
    Chared03HD, Jul 11, 2007
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  5. Altus

    Altus Active Member

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    Check your caliper is centered correctly on the disc - though it does sound like a warped disc.
     
    Altus, Jul 11, 2007
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  6. geebake

    geebake Member

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    Yeah, I vote for warped rotor too. Take the caliper off and put a nice straight edge up against it at several points. Should be pretty obvious. Is the rotor grooved? They show up on eBay pretty regularly.

    Greg
     
    geebake, Jul 11, 2007
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  7. DanP

    DanP Member

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    It could be something as simple as one pad isn't in place properly. Sometimes, it's the easier solution.
     
    DanP, Jul 11, 2007
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  8. Kishkumen

    Kishkumen Member

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    This morning, I rode my bike to work. The dew was still on everything (it was like 5am). My front brake was engaged for the first 3 miles or so of my trip. I post this here in the hopes that this along w/my other issue w/the front caliper might help shed light on what is happening...
     
    Kishkumen, Jul 12, 2007
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  9. RickCoMatic

    RickCoMatic Well-Known Member

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    I vote "Stuck Caliper"

    He didn't say anything about the usual 'Pulsing" that accompanies a Warp.

    Plus ... after warming-it-up good (3-miles) is loosened-up.
     
    RickCoMatic, Jul 12, 2007
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  10. Kishkumen

    Kishkumen Member

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    How do I remedy that?
     
    Kishkumen, Jul 12, 2007
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  11. stereomind

    stereomind Active Member

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    You might have to take the caliper apart and clean the channels for the 2 o-rings inside... also, check the piston for any scuff marks or rust spots, and buff them down. You'll have to refill and bleed the brakes afterwards. It wouldn't hurt to clean the pin that holds the pads in place as well.

    If the o-rings look worn or damaged, a rebuild kit is in order, which will include the two o-rings and a dust cover for the bleeder screw.
     
    stereomind, Jul 12, 2007
    #11

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