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<p>I have a pair of those seals NOS in stock. But you should NEVER
have to use them to rebuild those calipers. we've done many, many.</p>
<p>Peter C<br>
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<div class="moz-cite-prefix">On 5/22/2017 6:48 PM, Randall wrote:<br>
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<pre wrap="">But that said - there is no 'cap' to be removed to get at the pistons -
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I could be wrong, but I think he has the earlier TR3/A style calipers, with
the cross-over tube. They have a big plug in one side, which Girling said
to never remove. Under that plug, there is another plate and then there is
a round flat gasket between the plate and the caliper body.
We went through this last year, but I don't recall the resolution and can't
find the thread. There was a place in the UK that sells those gaskets for
other sizes of Girling calipers, but I don't know if anyone found a size to
fit the TR3 version. The SPC lists the gasket (aka "ring, sealing end
plug") as P/N 504829.
Someone suggested using an O-ring, but I'm dubious about that solution. To
seal high pressures, O-rings have to go into a groove that supports most of
the ring; and there is no groove for them in the caliper. And the pressure
there can go over 1000 psi (during a panic stop).
-- Randall
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<pre class="moz-signature" cols="72">--
Peter Caldwell
World Wide Auto Parts of Madison WI
2517 Seiferth Rd
Madison WI 53716
(608)223-9400
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