One of the pair of twin piston brakes that Julius gave me have been rebuilt. They both looked to be in good shape - a sticker on them said "remanufactured", the brake pads that came with the calipers looked almost new - I doubt they'd seen much use.. All the rubber seals were intact and looked healthy, the walls of the piston and bore looked smooth with no pitting or rusting. There was even a small amount of grease at the base of the bore from the original rebuild.
I gave the bore and piston of the first caliper a quick polish with some brake fluid and a 3M Scotchbrite pad, and put them back together. Start to finish was about 20 minute. The second side was not so easy. One of the pistons popped out no problem, but even with a metric ass load of compressed air the second piston took about 30 minutes of compressed air and C-clamp work to break free. Turns out a small section of the bore had been hit with something - looked like it had been knocked out of round and was making the piston stick. I'm glad we rebuilt them! Julius has another set or two lying around, we should still be able to get two good calipers.
(hard to read the red label, but it says "Remanufactured By ______"
Tuesday, March 9, 2010
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