Touche' has one. Dennis C. Touche' 35-1 #83 Mandeville, LA
On Jan 29, 2018 11:29 AM, "Patrick Davin via CnC-List" < cnc-list@cnc-list.com> wrote: > Does anyone have a vented loop on their engine cooling water hose (between > the heat exchanger and the exhaust elbow)? Do you think it's necessary, > and any regrets / things you would change? If you have one, where is it > mounted? (particularly for LF38 layout, but any C&C over 32' would probably > be relevant) > > I searched the archives for previous discussion of this but couldn't find > anything. A diesel mechanic I'm having work on the engine (Yanmar 3HMF) > recommended a vented loop as a precautionary / extra-careful measure. Our > exhaust elbow is a few feet above waterline, and I'm skeptical we could > ever be heeled enough to bring it below heeled waterline (we've had the > toerail in the water before, and afaik the boat has never had a waterlock > issue). But I see his point about it maybe being cheap insurance against a > big problem. > > Background: a vented loop is sometimes installed between the heat > exchanger and the exhaust elbow to prevent water in the hose from siphoning > into the engine, resulting in hydrolock or worse (engine being ruined). It > has nothing to do with the exhaust hose exiting the boat (past the exhaust > riser). The need for it is determined by whether the exhaust elbow can be > below heeled waterline or not. Opinions on the Internet diverge (some > people think they're necessary, some don't). So I'm interested in what C&C > folks have since this is very specific to engine layout. > > -Patrick > 1984 C&C LF38 > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > >
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