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-   -   disc brake piston won't retract (https://forums.ihpartsamerica.com/showthread.php?t=13626)

meisterj 09-02-2017 02:56 PM

disc brake piston won't retract
I put the TSM rear disc brake conversion on a '74 scout II. The directions said to take the calipers off the bracket to bleed them, so I did. After bleeding, one side was fine but the piston on the other side was pretty far out. When I tried to retract it turning clockwise with a needlenose pliers, it came out farther instead of retracting. Rented the piston retraction tool from AZ and even using that I can't get the piston to turn and retract. What can I do? Did I do something wrong or is the caliper bad?

Robert Kenney 09-02-2017 06:58 PM

Re: disc brake piston won't retract
Apply pressure to the piston with a C clamp and loosen the bleeder screw. After pushing it back till it stops, begin turning the piston in the reverse direction of of the first attempt.

meisterj 09-03-2017 02:06 PM

Re: disc brake piston won't retract
Loosening the bleeder did the trick. Thanks.

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