Join Date: Jun 2011
Location: somewhere south of civilization
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Re: Engine cooling - Fresh to Salt water
Quite simply, you will be running one of the most corrosive natural liquids on the planet through your cast iron and steel engine, when you move from fresh water to salt.
As above, you can take your chances and hope for years of service or add a heat exchanger, seawater cooling system and feel fairly secure that you will have a reliable engine when you need it. Engine manufacturers wouldn't go to all the hassle and expense to put heat exchanger systems on saltwater boats if we all got 34 years (or even half that) without.
If it was me, I'd probably look for another boat. There is no guaranty that the boat has indeed always been in fresh water.
"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.
“Believe me, my young friend, there is nothing - absolutely nothing - half so much worth doing as simply messing about in boats.” ― Kenneth Grahame, The Wind in the Willows
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