I realize this thread is almost a week old but I'm on digest mode and
with the holidays last week I got a bit behind in my reading.
What materials does your friend's foundry pour? What type of molds
(sand,
plaster, permanent) do they work with?
If aluminum, might I suggest casting the TR6/GT6 water pump body (this
is
the cast iron distribution manifold) that the water pump (assy) mounts
into. This would be a much easier and more manageable part to make than
a head.
The pump body (manifold) is a huge slug of cast iron on the front of an
already heavy engine . And it is a simple enough of a part that I could
put the raw casting up on my Bridgeport mill and do the finish machining
(I'd be willing to machine a few castings for you/your friend also).
I'd even be willing to supply a cleaned up cast iron part with waxed up
areas on the machined surfaces to account for machining stock to use as
a pattern. I have considered having this part cast out of aluminum for
quite some time.
Date: Sun, 1 Dec 2002 00:22:56 -0000
From: "Graham Stretch" <technical@iwnet.screaming.net>
Subject: Some input on castings Please
Hi Folks
Hope you are all enjoying / enjoyed Thanksgiving.
A question for those in the know. I met an old friend of mine today, he
works for an engine improver which is just going into the cad cam field
and
he asked me if there were any projects I could think of which involve
castings as this is the precise area that he specialises in and the new
equipment will need a shake down project! He mentioned the Le Mans
Spitfire
head, am I correct in thinking this was for the 1147cc engine, and cross
flow to boot? If so does anyone know how much other unique content there
was
involved with fitting this head?
Next question,
Are there any castings needed for any of the cars that are stopping
restorations, as in if this bit is broken you either have to have one or
know where to get one or you can forget restoring that one?
It just seems to me that as my friend wants to make a contribution to
the
classic scene (which he enjoys with a Herald and Spitfire and in the
past
Dolomites as well,) it would be best to start with something which is
really
needed not just a fancy tuning mod!
Any feedback will be duly forwarded to my friend for his consideration.
Graham.
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