Brake caliper seals

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Jun 4, 2018 | 05:27 AM

wolfsdad

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Intermediate

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Brake caliper seals

Hi guys,
One of the seals on my caliper is leaking very slightly. It has been converted to O ring pistons/seals.
The leak appears to be coming from a damaged top seal, the one that fits over the piston and seats into the caliper.

My question, is this seal the same size in both lip seal kits and O ring kits? I have a spare lip seal kit and was going to use the one seal from that if it's the same size. I'm in th UK so I can't just go to a local parts store and the specialists only have the complete conversion kit or the same lip seal kit that I have.

Appreciate any help.

Jun 4, 2018 | 05:35 AM

bfit

Pro

Joined: Apr 2012

Posts: 657

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From: Picton NSW

Take the piston and caliper to a reputable hydraulic company they will be able to supply an oring to suit

Jun 4, 2018 | 05:41 AM

wolfsdad

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Quote:

Originally Posted by bfit

Take the piston and caliper to a reputable hydraulic company they will be able to supply an oring to suit

Pretty sure the O ring is ok, it's the actual seal that has a pin ***** hole in it.

Jun 4, 2018 | 05:41 AM

revitup

Burning Brakes

Joined: Dec 2005

Posts: 1,164

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From: Pawleys Island, SC

If fluid is leaking from the "top seal", the one that fits over the piston and seats into the caliper, then the o-ring seal is leaking. That top seal is just a dust boot.

Jun 4, 2018 | 06:53 AM

wolfsdad

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Quote:

Originally Posted by revitup

If fluid is leaking from the "top seal", the one that fits over the piston and seats into the caliper, then the o-ring seal is leaking. That top seal is just a dust boot.

Of course it is! Must gave been having a brain freeze! New caliper on order, thanks.