Why does my rear brake caliper turn but not retract?
Like the title says, the piston on one of my rear calipers will turn with the cube tool, but won’t retract. Spent a good 20 minutes and probably got 50 full rotations, but nothing doing.
Is there a way to compress the caliper piston?
There is a need to carefully diagnose and fix such issues right away as it may put your vehicle in danger. One of the main ways to compress your caliper piston fully is to take care of the brakes. If you top-up the brake fluid and replace the brake pads when required, then you might not run into any problems with the caliper piston.
Why does the piston turn but not retract?
The c-clamp will force it back in, through the threading. It would be like taking a water bottle and essentially hammering the cap back on. OP was doing it correctly, just not getting the results. That’s why I figure somebody did it wrong and just forced the piston back, destroying the caliper, essentially.
What to do when your brake pistons don’t Retract?
The fix is to carefully pump the brake lever so both pistons come out a little from the caliper. If only one piston is coming out, then put pressure on that piston to hold it in place and see if you can get the other coming out equally. Give the piston sides a good clean and then apply a very light coating of brake (or rubber) grease.
Like the title says, the piston on one of my rear calipers will turn with the cube tool, but won’t retract. Spent a good 20 minutes and probably got 50 full rotations, but nothing doing.
How to retract the rear caliper piston with an integral parking brake?
How to retract the rear caliper piston with an integral parking brake. This style requires you to twist and push the piston in at the same time. They cannot be simply pushed back in. Category Autos & Vehicles Show moreShow less Loading… Advertisement AutoplayWhen autoplay is enabled, a suggested video will automatically play next.
What causes a caliper piston to stick on a car?
Brake fluid is hygroscopic …fancy term for water absorbing. The water stays in suspension in the fluid until it boils out …which occurs in the hottest parts of the brake system; the disc calipers. So over time that little bit of water will create rust on the caliper piston causing it to stick or completely seize up.
The c-clamp will force it back in, through the threading. It would be like taking a water bottle and essentially hammering the cap back on. OP was doing it correctly, just not getting the results. That’s why I figure somebody did it wrong and just forced the piston back, destroying the caliper, essentially.