Yep, Gasgacinch and Permtex300 What I use. I don't like silicone much. For Cork I glue one side to the heaviest metal part. Vaseline, on the exposed cork and clamp it down. Lets the cork stay soft and release. Works wonders on Valve covers and oil pans. Cardboard types get glued on both sides. "O" rings get no glue, just a bit of Vaseline. Carb base gaskets get some Vaseline, it helps them seal and they can be taken apart.
Timely thread. I was just wondering about the best way to handle the valve cover gasket on a 235. Got a new gasket...and I had assumed maybe goop between the gasket and the cover...and then dry (or your Vaseline method)between gasket and head.
If I read your post correctly, you would do the opposite?
From the amount of ancient crap on the side of my block, looks like valve cover seal has been an issue at some point. I want a good seal, but also to be able remove for minor service operations.
