left caliper is dragging. replace caliper or M.C.??

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Thread: left caliper is dragging. replace caliper or M.C.??

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  1. #1

    left caliper is dragging. replace caliper or M.C.??

    Hello, I have an 88 Magnum with teh Kohler motor. I replaced all the chains and bearings this summer and it has been running well until the last few trips. Now after about 15 minutes, the left caliper starts to drag heavily, to the point it will seize.

    I am assuming the caliper will not slide back open, and I dont think it is the M.C., however I figured I would post here to see if that is a common issue.

    So should I just go ahead and order a new caliper and pads?

  2. #2
    Join Date
    Jul 2007
    Location
    Northern BC
    Posts
    2,990
    Change your brake fluid.
    If your brake fluid has any water/moisture in it, it will expand when it starts to heat up. The expansion will pressure up the brake system, causing the brake to drag.

    When it happens again, try pulling the cover off the master cylinder (just need to loosen it). That will help you get to where you're going, but will not solve the problem (temporary fix).

    RD

  3. #3
    I will try that. I have a feeling my cap does not seal correctly, so I don't *think* it is building pressure, but I am not sure. My immediate trail fix was WD 40 on the rotor. It atleast got me to where I could hoof it back.

  4. #4
    Join Date
    Apr 2013
    Location
    Northern Ontario
    Posts
    101
    You can buy rebuild kits for the M.C. and caliper. Just make sure you replace the fluid with the recommended type.

  5. #5
    Join Date
    May 2009
    Location
    NJ 08533
    Posts
    5,052
    It's possible the brake hose it chaffed on the inside, If you loosen the hose at the caliper and it frees that's a good possibility if RD's fix doesn't work.

  6. #6
    Quote Originally Posted by Supermag View Post
    You can buy rebuild kits for the M.C. and caliper. Just make sure you replace the fluid with the recommended type.
    is there a type of fluid that I can buy at a auto parts place, or does it have to be Argo brand?

  7. #7
    Join Date
    Jul 2007
    Location
    Northern BC
    Posts
    2,990
    You can get it anywhere, just make sure it's DOT5

    RD

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