Elle:

He changed the valve cover gasket and those little rubber seals
in May 2004. He had "seakage" at the start, but it was so slight as
to not be an issue. It is now seaping way too much and he has to
go to Columbus next week. I have a nice selection of tools, with
the correct torque wrench. I suspect he might have pinched/twisted
the gasket.

Thanks for the reply
Terry