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Brakes rubbing after change.

Discussion in 'XJ Technical Chat' started by Stone, Feb 14, 2012.

  1. Stone

    Stone Member

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    Hey everyone, I just replaced my front tire and brake pads. Once I got it all together my front brake pads started to rub , it will still turn but not free spin. I'm wondering if this will wear down or if i possibly put the pads on wrong or the wheel is on crooked. Also could it be the axle not properly greased? I didn't have any on hand , but plan on grabbing some tonight.
     
  2. RickCoMatic

    RickCoMatic Well-Known Member

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    The most likely cause is "Crud" that has built-up in the Caliper's Main Seal "Channel"

    You have to:
    Remove Caliper Piston
    Remove Caliper
    Clean-out the Main Seal Groove to bare aluminum.
    Install a NEW Brake Caliper Seal
    Lube everything with fresh Brake Fluid
    Re-assemble and Bleed Brakes.

    BEFORE you re-install the Pads:
    Chamfer the Sharp Edges
    Chamferring will prevent Brake Squeal
     
  3. Stone

    Stone Member

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    Thank you, The problem is , one of the screws to the break fluid reservoir is stripped so I have no way to refill it at the time. This is another issue I was going to have to deal with at sometime. Is there a way I can clean the Calipers and everything else without bleeding the brakes.
     
  4. RudieDelRude

    RudieDelRude Member

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    If you crack open a part of the brake system that exposes the system to air (except the reservoir), you need to bleed em. Not to mention, youll want to take that opportunity to also flush the old brake fluid out too. So, no, you need to get that cap off. A small ezout or a screw extractor, with some pb blaster or kroil to help loosen it should do the trick.

    I wouldnt skimp on your brakes, they are actually quite simple to rebuild too.
     
  5. Stone

    Stone Member

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    Awesome , Ill go grab an ez out and get on it.
     
  6. LETitRIDEparts

    LETitRIDEparts Member

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    You can also drill the screw out with a metal bit. Just use a bit the same size as the shaft. Most likely an 1/8" bit for those. That will remove the head and then it will lift right off over the shaft. Make sure that NO metal shavings get inside and if they do then clean them out. The rest of the screw will un turn easily once pressure is removed. Then go get a new screw and back in business.
     
  7. Dannymax

    Dannymax Member

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    Replace the phillips screws with allen bolts so you don't go thru this whole thing again down the road.
     
  8. tskaz

    tskaz Active Member

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    Also don't forget new banjo bolt washers for any of the bolts you loosen to remove caliper(s). If you don't use new washers your brake union joints will probably leak.
     
  9. tskaz

    tskaz Active Member

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    Also remember to torque the bolts to spec. Some of them are different between. The 650 and 750.
     
  10. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    All very sound advice. The bottom line is, you need to rebuild your brakes.

    One more detail: There is no need to "grease" the axle itself, aside from making installation easier. Once in place, the axle itself doesn't turn, and nothing turns on it.
     
  11. Stone

    Stone Member

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    Sweet good to know.
     

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