Is it a good idea to convert my raw water cooled Atomic Four engine to fresh water cooling by fitting a heat exchanger?
Yes. The cast-in water jackets in the cylinder block, cylinder head, and exhaust manifold of raw water cooled engines run in salt water are gradually being corroded by the salt water even when the engine is stopped, and plugged by the minerals and salts precipitated out of the hot water as the engine is run. Usually the first problem that occurs is overheating because the partially plugged water jackets restrict the flow of cooling water, and then later the engine block, cylinder head, and exhaust manifold begin to corrode through until they are so weak small leaks or cracks develop. Although cylinder heads and exhaust manifolds can be replaced, it is very expensive to replace the engine block itself (Atomic Four engine blocks are no longer available). The cost of all the components necessary to convert an engine to fresh water cooling is approximately $900, and although the conversion is expensive, it is one of the few modifications you can make to your engine that will actually incre
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- Is it a good idea to convert my engine to fresh water cooling by fitting a heat exchanger?
