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We're not really at odds or contradictory .... 200 1982

posted by  Ken C on  Wed Jan 25 12:03 CST 2012
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last visit: Fri Oct 24 11:39 CST 2014
[RELATED]

re: "...Brakes are too important to be wanking on with prybars, etc., the pistons need to move freely and smoothly ro operarate properly...."

I agree fully.

If anyone sees a contradiction between your advice and mine (viz., [paraphrasing] using screwdrivers to pry the pads/pistons inward), it's a misunderstanding about the severity of the forces needed.

That is, if you really have to force it against some "grinding" resistance, or it's truly stuck, then it's time for a new caliper. On the other hand, there is always some difficulty in retracting the pistons merely because of the hydraulic pressures generated behind the piston, and relief only being through a very long, narrow pipe leading all the way back to the M/C's reservior. Moreover, as one presses on one piston, the opposite side's piston invariably pushes out, at least somewhat, further complicating matters.

It's this moderate but reasonable resistance to which I was suggesting a remedy. A truly stuck or stubborn piston clearly warrants a replacement caliper.





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