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Why Does My Brake Squeal

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  • Why Does My Brake Squeal

    1978 FLH - Stock Rear Banana Caliper with 10" Disc

    when I leave the house why does the rear brake squeal the first few time I use it

    after driving around or even stopping for a while it does not squeal

    the first time it did this i was coming up to a Stop Sign and though to myself, I hope that car behind me stops and not run into me

    come to find out it were my brakes doing the squealing

    pads look good
    disc is not worn or grooved, but is smooth and shinny
    has not gotten wet
    Last edited by jsoko; 11-06-2019, 04:06 PM.
    Huntin' Fishin' And Lovin' Every Day
    Northwest Georgia
    1954FL ~ 1978FLH ~ 1997FXD

  • #2
    Metallic pads. Proper shimming and silicone lube on the slides and pad backs might help, but...
    "LAME DOUCHE CANOE"
    "VAGINA"

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    • #3
      http://www.cnn.com/2009/LIVING/wayof...brakes.squeal/
      "LAME DOUCHE CANOE"
      "VAGINA"

      Comment


      • #4
        i have found there are numerous causes for the dreaded squeal. even a particular dust pattern on the pads that doesn't mate well with the rotor.....
        I love my freedom so i thank GOD and veterans, not politicians!! sweet home Arizona

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        • #5
          Rear brake boomerangs are notorious for being out of square, so much so that there are factory tools to check and bend them. For those of us without those rare and expensive tools, minimize the alignment problem by checking the reaction link, and while you are at it, that the rear wheel is square in the swingarm. The better the alignment of everything, the quieter the brakes will be.

          Jim
          High Point, NC

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          • #6
            I will re-check the rear wheel alignment

            now that you mention it I replaced the chain in September

            I use a rod bent on one end that I hook over the front of the swing arm on both sides to get it equal

            is there a better way?
            Huntin' Fishin' And Lovin' Every Day
            Northwest Georgia
            1954FL ~ 1978FLH ~ 1997FXD

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            • #7
              Joey, you sure your swingarm isn't bent?
              Not what you expect from this forum
              Forum fucktard
              Winner of the Asshole thread...

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              • #8
                Moisture
                YOUR NUMBER ONE Millstadt Illinois the fucked STATE.

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                • #9
                  Originally posted by Bone Head View Post
                  Joey, you sure your swingarm isn't bent?
                  I wouldn't think so, as nothing has happened to cause any damage (just normal riding on the smooth roads



                  Originally posted by huckster View Post

                  Moisture
                  Bikes stay in a conditioned garage, very low humidity, no moisture and brakes did not get wet

                  this just started
                  and only squeals the first few time i apply the rear brake
                  Huntin' Fishin' And Lovin' Every Day
                  Northwest Georgia
                  1954FL ~ 1978FLH ~ 1997FXD

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                  • #10
                    I'd try spraying the brakes with brake cleaner, see if that doesn't quiet it up. Easy to try before taking anything apart.

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                    • #11
                      When I took my '84 banana front brake apart to look for cause of horrendous squeal, I found somebody had put the pad shims in backward so pressure was applied to the back of the pad more than the front instead of vise-versa. If shims are installed, they should orient so the front (or trailing edge) squeezes on the rotor before the rear.

                      Swapping reversing the shims immediately cured my terrible locomotive like front brake squeal.

                      Now only the rear brake squeals...
                      "LAME DOUCHE CANOE"
                      "VAGINA"

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