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Need Help - Brake piston seal

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Old May 1, 2015 | 08:18 PM
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Default Need Help - Brake piston seal

Hi,

I have to replace a couple of the outer seals on my o-ring brake pistons (don't ask). The original seals which were part of the kit from Corvette Central are the ones at the bottom of the pic. The new ones which a guy got for me from Napa Brakes seem to have an additional seal (next to piston). Is this meant to go in behind the other seal? I tried it in there but it seems to restrict the piston movement. I would appreciate your advice.





Cheers, Colin
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Old May 1, 2015 | 09:02 PM
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UP 453 is a seal kit for the front calipers. I believe you are referring to the original style seal for the piston. I can not tell you if the dust boot would be the same for an "o" ring style piston or not. In the picture it does appear to be the same. Mike
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Old May 1, 2015 | 09:58 PM
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That additional seal looks like a lip seal to me.

Since you are using the o ring, you don't use the lip seal.

Just use the o ring and the new dust seal shown second from the bottom of your picture.

If I'm wrong, I'm sure someone will correct me
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Old May 1, 2015 | 10:31 PM
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Originally Posted by hzz

If I'm wrong, I'm sure someone will correct me
100% correct...BTW to the OP, try using a socket and hammer to tap the dust boot in, or a (smaller) hammer and a PVC plumbing cap from your local home improvement center, if that is you have those in the UK

Last edited by redvetracr; May 1, 2015 at 10:34 PM.
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Old May 2, 2015 | 01:16 AM
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I think you do not need the additional seal, this one is just enough

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Old May 2, 2015 | 03:49 AM
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Default Thanks everyone!

Thanks for your help guys. I have used the outer seal only. Yes I assume that this particular kit contained the seal for the original lip seal style as well. Rear brakes are on again. Now for the motor and transmission tomorrow!



Cheers, Colin
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