Mike, put a big copper washer between the head of the bolt and where it goes thru the 90 degree adapter. Then the thick cork washer between the adapter and block, the little one that goes over the bolt. Then dob both sides of the big round ring gasket with Ultra Black RTV. Throw that fiber gasket away that you use the big copper washer to replace. Them things crack after some heat cycles and there comes your oil leak. The washers below are the ones you want. I got a pack from McMaster-Carr. You will have to hone the ID out just a touch so they slide up the big bolt.
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