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Howard
HELP - I bought a new (used) hydraulic disc brake caliper which came with the used pads in it. There is lots of life still in the pads. I used them on a new rotor. Lots of squeaking....sanded the pads a bit. Better but the squeaking still occurs when I pull lever when i am really slow / coming to a stop. There is noticeable pad marks on the rotor, I am not sure if that is from the breaking in process or because I used the used pads on the new rotor (contamination?). Noise is embarrassing. Need to clean rotor? with what?