Stuck brake piston

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Jan 26, 2016 | 09:21 PM

Chets LS3

Thread Starter

Melting Slicks

Joined: Apr 2009

Posts: 2,431

Likes: 77

From: Lake Charles Louisiana

Stuck brake piston

Well, I was changing the pads to a new set of track pads. Pressed in pistons with old pads like always. pushed in bottom pistons (top piston pushed out some) went to push in top piston and nothing. Long story short after cracking bleeder, opening bleeder to now pulling the caliper.

With caliper disconnected no budge.

I have pics attached, and I don't know much about seals, but these things look horrible.

3000 miles. one track weekend. One set of carbotech pads.

Last edited by Chets LS3; Jan 26, 2016 at 10:26 PM.

Jan 27, 2016 | 07:32 AM

nytrorcr

Pro

Joined: Nov 2012

Posts: 683

Likes: 140

From: Cookeville TN

Hope that assy isn't as bad as it looks. I would reassemble and pressurize system and see if that allows piston to free up. Maybe warrenty time..........

Jan 27, 2016 | 08:43 AM

Chets LS3

Thread Starter

Melting Slicks

Joined: Apr 2009

Posts: 2,431

Likes: 77

From: Lake Charles Louisiana

Well I ended up disconnecting the entire caliper. I was able to turn the piston back and fourth. After that it slid right back in

Jan 27, 2016 | 04:56 PM

Bill Dearborn

Tech Contributor

Joined: Oct 1999

Posts: 41,058

Likes: 9,820

From: Charlotte, NC (formerly Endicott, NY)

Can't really tell anything by the condition of the dust boots. They turn into crispy critters shortly after the car gets to a track where the brakes can be exercised properly.

Bill

Jan 28, 2016 | 11:38 AM

bob guzzy

Safety Car

Joined: Jan 2006

Posts: 3,940

Likes: 43

From: shavertown Pa.

You may have overheated the caliper and cooked the boot and seal to the piston or warped the piston.

Either way I think your going to want to put at least 1 new piston in.

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