05-18-2014, 06:19 AM
Little job on one of my bikes, seized rear caliper off, immovable piston... No chance of a replacement with the shops and breakers closed, and anyway, I'm tight...
Made a fixture to hold it in the drilling vice, drilled into the caliper to press the piston out, threaded the hole M8, polished the pistons and soaked the caliper body in white vinegar to clean out the corrosion (works surprisingly well!) before polishing the.bores, now to reassemble with new seals, plug the new hole with a button-head capscrew and copper washer, refit and bleed and give it a Vigorous Test in the sun!
Made a fixture to hold it in the drilling vice, drilled into the caliper to press the piston out, threaded the hole M8, polished the pistons and soaked the caliper body in white vinegar to clean out the corrosion (works surprisingly well!) before polishing the.bores, now to reassemble with new seals, plug the new hole with a button-head capscrew and copper washer, refit and bleed and give it a Vigorous Test in the sun!
Rules are for the obedience of fools, and the guidance of wise men...
(Douglas Bader)
(Douglas Bader)