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New to the Forum, seized caliper

Discussion in 'Hangout Lounge' started by Matt R, Sep 13, 2015.

  1. Matt R

    Matt R New Member

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    Hey guys, I'm new to the forum and I'll probably be on here a lot looking for advice as I fix up the 81 xj650 maxim i just bought. First issue I have is a seized caliper, go for a rebuild or buy a new one? also should i go with the stainless steel lines from xj4ever? ( pics of bike and caliper included)
     

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    Matt R, Sep 13, 2015
    #1
  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Close the banko bolt hole with a plain bolt. Open the bleed nipple and attach a grease gun. Pump grease in until the piston pops out, then evaluate to see if the piston is in good condition for rebuilding the caliper.
    Stainless lines are the best upgrade that you can make to the stock brake system. Don't forget to rebuild the master cylinder.
     
    k-moe, Sep 13, 2015
    #2
  3. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    +1
     
    hogfiddles, Sep 14, 2015
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  4. Matt R

    Matt R New Member

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    Got out the grease gun and it worked like a charm, after i refilled the gun with grease lol, is this piston shot or should i throw some evapo-rust in there and let it sit? also I'm assuming never reuse the seal on the inside correct? 0914152004.jpg 0914152004a.jpg 0914152004b.jpg 0914152005.jpg 0914152005c.jpg
     
    Matt R, Sep 14, 2015
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  5. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    The inside of the piston cup doesn't matter... The outside surface of the piston does. Yours looks ok from the angles I see. The grooves need to be meticulously cleaned. I HIGHLY recommend a new seal. ( that being said, I have re-used some IF THEY FEEL LIKE NEW....any hard spots, softer spots, pinched, damaged, worn, etc.....spots means I throw it away though. Any that I do for someone else-- automatically get a new seal. You should too.
     
    hogfiddles, Sep 14, 2015
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  6. Matt R

    Matt R New Member

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    Thanks for the help
     
    Matt R, Sep 14, 2015
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  7. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    The groove in the caliper is the important one... The one shown on the piston should be clean, but it's only the groove where the dust boot and retainer spring go, so you don't need to be AR on that groove
     
    hogfiddles, Sep 14, 2015
    #7
  8. Toomanybikes

    Toomanybikes Well-Known Member

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    Hogfiddles is right if your that far in new seals are a good idea. Rust tends to bond to the seal and will be a problem.
     
    Toomanybikes, Sep 14, 2015
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  9. Matt R

    Matt R New Member

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    alright will update with photos when its done.
     
    Matt R, Sep 15, 2015
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