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Cris · 06-20-2018, 01:12 PM

Aargh, that does sound frustrating. Not sure if this was an issue but RTV's like Ultra Black require 24 hours to fully cure. Starting the engine before then can inhibit a full cure.

A really good sealant is Permatex "The Right Stuff". It adheres better than traditional RTV's and seals really well. It also can be put into service immediately (though I usually allow a cure time). You'll find many testimonials to it by Googling. Many shops won't use anything else. It is a little pricey.

06-20-2018, 01:12 PM	#74
Cris Registered User Join Date: Aug 2016 Location: Los Altos Hills, California Posts: 170	Re: Leaking near flywheel Aargh, that does sound frustrating. Not sure if this was an issue but RTV's like Ultra Black require 24 hours to fully cure. Starting the engine before then can inhibit a full cure. A really good sealant is Permatex "The Right Stuff". It adheres better than traditional RTV's and seals really well. It also can be put into service immediately (though I usually allow a cure time). You'll find many testimonials to it by Googling. Many shops won't use anything else. It is a little pricey.