Have had a barely-worn Pagid rear inner brake pad split from its backing plate - all the friction material fell off in one piece. The caliper piston is, from the look of it, fully-extended, with just the backing plate in front of it.
I can fairly easily rotate the piston clockwise, but it won’t retract at all, even with a big caliper rewind tool (I stopped when the brace plate on the tool started to bend). Opening the bleed nipple doesn’t make any difference.
The piston is still moving to some degree when the brakes are applied, it doesn’t look corroded under the boot, and the calipers are otherwise fine.
Am I missing something obvious?
I can fairly easily rotate the piston clockwise, but it won’t retract at all, even with a big caliper rewind tool (I stopped when the brace plate on the tool started to bend). Opening the bleed nipple doesn’t make any difference.
The piston is still moving to some degree when the brakes are applied, it doesn’t look corroded under the boot, and the calipers are otherwise fine.
Am I missing something obvious?