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To the opening post:
It’s often a question of tools. Metal is a specialty.
Does your “toolbox” include tools with terms like
Van Norman Rotary Broach?
Blanchard Grind?
We have a couple of centuries into engines.
Find an old fashioned automotive machine shop.
Or just buy a “re-manufactured” cylinder head. Which is distinct from “rebuilt”.
An engines health is all about cylinder pressure. And that depends on the seal. The total distance across the cylinder head is hard to measure for flatness.
Metal is a wonderfully plastic material. And it’s never still. Time and miles take their toll.
I, too, had to learn much from books. Perseverance pays. If you haven’t already, wait till you run into the instruction : “Perform the next step in the usual manner”. (Ha!).
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