I used Permatex RTV Red High Temp gasket maker on Touche's old AT4. It's a close cousin to the Permatex Ultimate Copper gasket maker.
After I purchased the boat it took some effort to get the AT4 running. When it finally started, I noticed water running everywhere in the engine compartment. I was leaking from the freeze drain and the right side plate. I pulled the engine, took it home and pulled the side plate. The sealing surface on the block had corroded and was no longer smooth and flat. I smoothed it best I could with a file and sanding block but it still had some uneven areas. I had to "upsize" a couple of the bolt holes. (I could have inserted Helicoils also.) I slopped on some RTV, added the gasket and bolted on the side plate. The RTV was still doing well when I repowered with a diesel 4 years later. Dennis C. Touche' 35-1 #83 Mandeville, LA On Thu, Dec 6, 2018 at 6:15 PM robert via CnC-List <[email protected]> wrote: > Bill: > > >
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