I'm winterizing a Bayliner 175 with closed circuit cooling. The Mercruiser manual says to drain the heat exchanger but I can't access the drain without completely removing it. I'm thinking I'll need to fill the raw water portion with RV antifreeze via one of the hoses. Sorry if this topic has been covered. I couldn't find it via the search and quite a bit of google searching. Thanks.
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Winterizing a 175 - can't drain heat exchanger
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Never saw a 3.0l engine with a heat exchanger, except for a power steering cooler.
That being said you can try to ( Backwash it ) .Be good, be happy, for tomorrow is promised to no man !
1994 2452, 5.0l, Alpha gen. 2 drive. Sold ! Sold ! Sold !
'86 / 19' Citation cuddy, Merc. 3.0L / 140 hp 86' , stringer drive. Sold ! Sold ! Sold !
Manalapan N.J
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