Senior Tech Team
Join Date: Apr 2012
Location: Yerington, Nevada
Re: #5 Running Hot
Actually, the sealer on the intake manifold gaskets, you have the end sealing covered, RTV works in place of the rubber end seals.
That stuff around every intake port and water port is a compound used not only on gaskets, but as a gasket for metal to metal junctions, metal to rubber, etc.
The motorcycle industry uses a sealer that is the same as the beads, called Three-Bond, and is anything from 4, 1104, 1194, and other levels of sealer. They use it between engine cases that have no gasket but the T-B compound, on gaskets, and just about anything except exhaust heat areas. Motorcycle manufacturers have it as well, Honda Bond, and the number, Kawasaki Bond, Yama-Bond, Suzuki seal, and on.
I use it to seal rubber intake manifolds on bike engines, to the aluminum head flanges,
I don't know what it is called in the automotive industry, but it is great stuff, and different colors on different gasket sets.
Key is to get the surfaces clean, clean, CLEAN, and install, let set up for a couple of hours before use. Cleans up easily with acetone or lacquer thinner, and it stays a touch wet.