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Old 08-18-2003, 01:48 AM
capedoryus's Avatar
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Join Date: Aug 2003
Location: key west
Posts: 18
Unhappy seized caliper, any hope?

I have the front drivers side caliper off and used air from a bike pump to get one piston out of the caliper but cant seem to get the other one out. I put the cleaned up piston back in and secured it so that the other piston(the siezed one) would be the only one able to move from the air pressure. The piston just aint goin anywhere. any ideas on how tto get the piston out of the caliper.
Thanks in advance
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Old 08-18-2003, 02:13 AM
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Join Date: Jan 2001
Location: oregon
Posts: 2,013
try hooking the caliper back up to the brake line but dont install it, then have a friend pump the brakes if the one piston is secured the stuck piston should come out, you will have to bleed the air out first.Clean up all the parts and put new rubber ring on piston and new rubber dust shield (rebuild kit from FastLane).......
William Rogers........

Last edited by william rogers; 08-18-2003 at 12:00 PM.
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Old 08-18-2003, 03:22 AM
haasman's Avatar
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Join Date: Jun 2001
Location: San Francisco, CA
Posts: 3,097
Also try compressing the stuck piston further into the caliper in hopes of breaking it free. If you do get it out be sure to inspect it carefully. If any deformities, replace it. Rebuilt calipers for your car are not that expensive, exchanged.

'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)
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Old 08-18-2003, 09:00 AM
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Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
I cut a small piece of 3/8" plywood to fit, and used a couple of C-clamps to hold it over the cylinder after I removed the first piston. Then try the air again on the second piston.

You may want to consider rebuilts - take-off's are optional, landings are mandatory.
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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