Actually, I didn't "duplicate" as I only installed a single gasket this time, (when I removed the previous double gaskets.)

That said, I should look to make sure (that with the step) it actually seals when tightened down. I might need to use two gaskets to provide a seal (that is if that turns out to be the problem.)

In any event, Thanks Again. Sounds like this very likely IS the cause.

Probably why I had Two gaskets in there from the previous rebuild in 2004.