Sorry for the bomb and delay - just catching up after getting digest
versions.
I'll keep it short.
Gasket sealer: use hylomar on just about everything except the head gasket
which should use a copper coat. It does not harden and you can remove and
replace gaskets.
Rust remover: use something like Evapo-rust. You just soak the part, the
rust comes off. Biodegradable, non-toxic - it works.
Rust killer: something like Corroseal, paint it on, coverts rust to stable
magnetite, and primes the surface with a paintable latex metal primer.
Peter
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