I did this procedure recently when I realized my brakes were nowhere near centered on the rotors. I tried to reset the pads, but the pistons on one side were stuck and the effect was to drag the whole caliper off center even when it was tightly bolted on. Odd, given some mechanical calipers only move on one side by design; now I'm second-guessing that diagnosis. Anyway, it worked. With clean pistons, the calipers are staying centered and lever feel improved a little.
March 12, 2021, 9:46 p.m. - cheapondirt
I did this procedure recently when I realized my brakes were nowhere near centered on the rotors. I tried to reset the pads, but the pistons on one side were stuck and the effect was to drag the whole caliper off center even when it was tightly bolted on. Odd, given some mechanical calipers only move on one side by design; now I'm second-guessing that diagnosis. Anyway, it worked. With clean pistons, the calipers are staying centered and lever feel improved a little.