"Kendall, Thomas" wrote:

I checked the finished pattern against the stock manifold and if

compares very favorably (Surprise!).  The finished part will be

slightly

shorter than the pattern appears because, besides shrinkage allowance,

the

pattern has a 1/8" machining allowance built into the pattern mounting
base.

Tom

You do beautiful work Tom. So good in fact it brings tears to my eyes.
When you get this project done you can submit all this to Sport Av.
This too would make a great article.

Paul Lamar

Tom,
I have found a small aluminum casting foundry not far from where I live
(It's on my way to the airport no less). If you would like me to
approach them on your behalf about this I would be glad to if you need
another estimate for the work.  They do al transmission castings, etc.
They would need to see the plug I am sure. I will print out these
pictures and take them by and see what they think. Would work for a
preliminary estimate? I live near Memphis.
I admit to knowing nothing about the foundry business (except I did do
some lost foam al castings way back) so I couldn't explain the process
above to them.
[Marc Wiese]

 
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