I'm not sure of the bore size--never checked, never crossed my mind actually--but I recently installed new wheel cylinders on both sides. Spitbits was the supplier.
I had leaking issues myself, thought it was from the piston but turns out it from both the bleeder valve and the hose connection.
The bleeder valve issues was my own making. The new one required a 10mm wrench instead of 7/16", so I used the old ones. Just different enough to leak.
The hose end leak was of my own fault also as the new hose installed was tapered and not flat. I didn't have the little copper washer either. Got both of those issues sorted and the leaks went away. The pistons haven't given me any trouble as I first thought.
--Previous Message--
: Thanks Glen,
:
: I am going to try to locate my old GT6
: part number book (from TRF) and see
: what it says. I'm sure that 20+ years
: ago I ordered whatever their parts book
: said was correct.
:
: I have put my brake work on hold until
: I resolve this issue. It's just as
: well. Though I am on vacation this
: week, the weather is cool with drizzle
: and a light wind. It's not the best
: time to work outdoors even on something
: as generally simple as brakes.
:
: Doug L.
:
:
: --Previous Message--
: Doug I have one catalog which shows
: 64673476 (Girling) up to 7/67, after
: (8/67-8/70)uses 390402 (Lockheed) which
: is 5/8 diameter.
: The 1968 Girling book shows the
: 64673476 used from OCT66-MAY68.
: CEW catalog doesn't even have a pn
: listed for the early Girling cylinder,
: and I don't know the diameter.
: HTH
: Glen
: ps- all of my reference material is
: paper catalogs, dated 70-80s, internet
: info is often later consolidation of
: part numbers.
:
:
:
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