Thanks for everyone's input. The cowl is back on, last test run up on the engine with new cylinders was successfully done today and I should be flying this week after 7 months of inactivity.
One more note on what happens in a coupe's life. At some point, the valve covers were powder coated. Somehow, the coating was on the inside surface of the valve cover, where the gaskets are supposed to seal. It was obscure enough that it was not noticed until we did the first run up after installing the new cylinders and all four covers had oil leaking out. So after cleaning the surfaces to remove the offending coating and using four new gaskets, there was no more leaking. With an airplane this old and various owners, you just have to check everything for unusual so-called "repairs". Darick
