F
fast eddie 52
Guest
Pry them open off the rotor and just pull them apart and clean the entire caliper and reassemble it. Take the seals out carefully and clean them. I use my fingernail to gently go around and scrape them clean from any stuck on gunk..then wash them with some hot soapy water and towel dry them. Then use a dremel and the little wire brush and clean the groove the seal goes into. The common problem is that scale builds up around and behind the seals in the grooves. This creates the need for something to be displaced and that would be the seal. This pressure causes the seals to gorilla grip the piston and your at the point you are now. If you simply disassemble it and clean the seals and grooves youll most likely have good brakes again..Its only a hr or so worth of work. Be sure tht you smear a bit of brake fluid on the seals and pistons before you slip them back in.
good advice, tho I would emphasize that you have to really clean the grooves down to bare metal, get all traces of scale(aluminum oxide???) out of the groove and off the square ring...I made a scraper tool out of a ground down wheel spoke that fits well into the groove and makes short work of scraping out the crud. I'd be wary of using the wire wheel with much pressure, you could possibly remove some aluminum in the process and damage the groove...the scraper could do that, too if yer not careful...