I’ve used 3M847 and Loctite Automotive Adhesive with good results. The Loctite Automotive Adhesive I think they repackaged as Stik’N Seal Outdoor Adhesive, because I can’t find the automotive version anymore. I think SealAll might work too.
Try to remove as much old sealant from the lip of the pan and clean with carb cleaner on a rag. I clean the groove of the gasket with a rag over the tip of a screwdriver because it’s sometimes oily in that groove and that would prevent the adhesive from grabbing.
After I put the gasket on I press it down a little and then every few inches secure it with some strips of masking tape to hold the gasket down and let it cure like that thoroughly. And then just remove the masking tape when cured.
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