On Sun, 2 Feb 2003, Dennis Haynes wrote:

> If the engine is an 1800, than it has solid lifters. It is possible that
> the noise you are hearing as a valve noise could be a blown head gasket
> seal.

It's also really difficult (to the point of almost being impossible, with
used parts) to get the exhaust headers to seal properly to the head on
these engines.  BTDT.  The best advice I've seen is to take a long file
and file across both flanges until they're flat and parallel to each
other.  It seems that with time the weight of the exhaust causes them to
bend inward slightly.  There's not much room for error when you're using
copper rings as gaskets and skinny studs to cinch them down.  There's lots
of discussion about this in the Type 2 archives.