Re: Exhaust Manifold Leaks
RonJon44, I agree with using a new manifold. In the freshwater of Michigan, they will last 20 years or so before rotting out. They are easy to find and purchase, although I have not found any great discount on price to be had. The marine manifolds are alot different than the automotive type, since they are water cooled. Use new marine gaskets on the block and riser. The removal/installation is equivalent to an automotive procedure, with the only danger is if the bolts are corroded into the block.