[TR] surface TR3 exhaust manifold?

[tr3driver at ca.rr.com]

> A friend of mine told me I
> should have the exhaust manifold surfaced before re-assembling.  It is not
> rusted, but not perfectly clean either.  What are your thoughts

I'd check it for being reasonably flat, with a straight edge (like a carpenter's square).  If it's not obviously warped, clean up the mating surface a bit with a file, and put it together.  If it is obviously warped, then either get it machined or pick up another manifold.

Randall