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Rear brake clunk

Discussion in 'XJ Technical Chat' started by clhannah, Aug 18, 2008.

  1. clhannah

    clhannah Member

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    Greetings!

    A few posts back y'all correctly diagnosed my harrowing adventure as rear brake delamination. I replaced the brake shoes and now I have a very slight clunk going between moderate pressure to stiff pressure on the brake pedal. My feeling is the whole plate (brake shoe plate?) is shifting slightly with rotation. I checked both bolts on the tension bar (the ones with retaining pins) and they were not loose.

    This does not appear to affect braking at all. When the bike is in neutral on the center stand the wheel will spin maybe 1/2 to 1 turn (relatively freely) and brake instantly when the pedal is depressed. Riding I feel I have excellent control of breaking pressure.

    Bear in mind I am a complete novice, this is my first bike, and the brakes weren't working properly when I got it, so I have no standard of comparison. So, is a little clunk normal, or a problem?

    Thanks in advance!
     
  2. chadwickm

    chadwickm Member

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    Disc or drum? If it's drum, this may be normal. On a drum brake, there is a metal rupport that keeps the drum from rotating, usually attached to the frame or swingarm. During braking, the drum will move slightly as the conection points on the support have a little play in them. The 'clunking' you hear is most likley that slight movement occuring as you engage the brake.
     
  3. clhannah

    clhannah Member

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    Thanks chadwickm. Drum brakes. What you describe is exactly what I thought might be happening, and I checked the screws that hold the bar in place (tension bar). Having the harrowing experience of delamination, I am a little hypersensitive I think.

    Cheers!
     
  4. wizard

    wizard Active Member

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    I hear what you say, chad' but it should not clunk,there is too much slack, replace bolts or bushes.
     
  5. clhannah

    clhannah Member

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    Hey wizard, you were right. When I pulled the rear wheel off I had moved that (tension) arm out of the way, but when I put it back I never tightened the front bolt. It *felt* tight, but when I put the bike up on the center stand and when at it from the other side, it snugged up quite a bit. No more clunk. Awesome ride today!
     

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