Originally Posted by ed2hess
. I did a compression test and it was 90.
You are just at the edge at 90 psi, anything less and I would do a complete rebuild or strip it for parts.
If you are leaking oil, it's got to be coming from a bad/leaking/warped cylinder base or a warped isoblock
A couple tricks you can try, double up on the cylinder gaskets, or get some high temperature gasket sealer and put some on both sides of the gasket (s)
If it is the isoblock, take some fine emery paper, on a flat smooth surface and sand it down untill you are flat on both sides. If the isoblock is warped, your first few passes will highlight the high points. You can also use the high temp gasket sealer here too.
Happy New Year