Brake Caliper Piston Stuck HELP!
Thread Starter
Burning Brakes
Joined: Feb 2007
Posts: 861
Likes: 49
From: Tampa, FL
Brake Caliper Piston Stuck HELP!
Changing the front pads on the Z06...one side went perfect and now on the 2nd side I squeezed one of pistons and the other one pushed all the way out that it wont go back in! What now
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
a flat wrench spanning both pistons, w/c clamp pushing on the middle of the wrench, to push both pistons in at the same time.
For the piston that is extended out. With the brake M/c lid off & 3/4 full of fluid,aplly pressure to piston w/clamp & release pressure by turning the bleed fitting for a split second. Should free things up.
For the piston that is extended out. With the brake M/c lid off & 3/4 full of fluid,aplly pressure to piston w/clamp & release pressure by turning the bleed fitting for a split second. Should free things up.
Last edited by bumble-z; Apr 9, 2011 at 12:22 PM.
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Sounds like you popped it out of the o-ring. Try turning and pushing to work it back in. Don't just straight force it because if it catches a little you can tear the o-ring and then you'll have a big fluid leak. With a little pushing and turning they usually go back in pretty easily.
You'll also likely have brake fluid under the dust boot and you'll have to pull the dust boot off the piston and dry/drain most of that up.
As posted, you need to push on both pistons at the same time on these 2-piston calipers if you try to force the fluid back through the brake system. Or, open the bleeder screw a turn or so and the fluid will dump out of there as you push in one at a time.
Peter
You'll also likely have brake fluid under the dust boot and you'll have to pull the dust boot off the piston and dry/drain most of that up.
As posted, you need to push on both pistons at the same time on these 2-piston calipers if you try to force the fluid back through the brake system. Or, open the bleeder screw a turn or so and the fluid will dump out of there as you push in one at a time.
Peter
