Rocky, you don't have enough mileage on the gasket if you've recently changed it. I recently had used a piece of glass and feeler gauge to make sure that the gasket was on the cover correctly. I though it was fine but leaked after a few months. (The glass came out of an old refrigerator and has supporting structures under it. It was free and is more stable than plain glass.)

My latest attempt implemented last week was to go back to gluing it down. I cleaned the surface of the head with a rag sprayed with carb cleaner, applied a very little grey RTV using my gloved finger to the head, let it sit, then installed the cover. The cover was not tight, only snugged. Later I torqued. So far, no leak and it's completely dry - but it's only been a week.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.