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seized brake piston

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Old 04-28-2014, 11:28 PM
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Default seized brake piston

In the middle of my ls1 brake swap I couldn't get the one piston on the drivers side piston to compress no matter what I try, buying and replacing the control arms used up all of my emergency money so I'm broke until next Friday and I need the car back tomorrow for work. Can anyone help? I think I'm screwed.
Old 04-29-2014, 01:33 AM
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Got an air compressor? Take the caliper off and take out the bleeder screw and put an air nozzle up to it and try to press the cylinders free (put a board in there so they don't shoot out across the garage/shop-because they will lol)

Assess any issues once you get them out.
Old 04-29-2014, 02:15 AM
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Originally Posted by MasterTomos
Got an air compressor? Take the caliper off and take out the bleeder screw and put an air nozzle up to it and try to press the cylinders free (put a board in there so they don't shoot out across the garage/shop-because they will lol)

Assess any issues once you get them out.
Thanks I'll try this tomorrow, hopefully the piston just needs sanded a bit
Old 04-29-2014, 07:56 AM
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this happened to me on saturday

I had no luck with compressed air, but I was able to stick a block to hold the good piston and just press the brake to get the other one to move outward. I didn't pop it all the way out, I just wanted to see if it moved at all and whether or not I could push it back in afterward

I don't screw around with brakes though. If it's frozen it's probably rusty, and if it's rusty it's probably pitted. I went and just bought a new caliper.
Old 04-29-2014, 09:18 PM
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Sounds like a rusted piston, time to buy a reman or replacement...
Old 04-30-2014, 12:29 AM
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Originally Posted by libertyforall1776
Sounds like a rusted piston, time to buy a reman or replacement...
Yea I got the piston apart and it was beyond my help so I had go borrow some cash for a reman.



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