Partial winetrization??? - SailNet Community

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  #1  
Old 10-21-2013
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Partial winetrization???

I'm leaving my W 27 in the water for the winter. I plan on attending to various projects while she's sitting mostly unused during the off-season.

While I don't specifically "live-aboard", I do/have spent nearly half my time aboard. I have used the head once in 6 months, as there's facilities ashore. I empty and change out/clean the fresh water tankage every two-three weeks.

I's like to have all the systems available during down time; but am loathe to come aboard to find frozen and leaking pipes. Is there a "best" way to partially winterize a boat?

The Beta20 has it's own supply of anti-freeze; but the water jacket/heat exchanger is fed by the thru hull and impeller. Then three's the matter of the water muffler and exhaust lines to be dealt with. While I don't have specific need to run the engine while there's snow falling, the option to be able to take advantage of a nice winter's day to sail does have appeal WITHOUT having to go thru a complete commission/decommission each time! :grrr:

*IF* II decide to close her down completely; what's the best way to freeze-proof the thru hulls? Rubber plugs from the outside and fill the lines down to the fittings with anti-freeze?. Fill down to the closed valves?

I plan to run a small heater when aboard and a bilge heater (60 w bulb?) when not there. 1500 w is all that's needed to keep the interior warm enuff for me. I plan on tenting it over and working topside occasionally utilizing a propane torpedo heater to take of the frost (only topside, with venting, of course!).

What's the consensus of those staying in the water over the cold times?

TAI,
Paul
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Re: Partial winetrization???

Paul
As far as your engine you can install a tee fitting with a hose and shutoff just above your thru hull. make the hose long enough to get to a bucket with pink anti freeze approx 1-2 gal. shut off raw water intake open valve start engine run till you got pink coming out of your exhaust, shutdown close valve, done. want to go sail for the day open thru hull, repeat the previous process. You other thru hulls you could do the same with a drain tee, and just close thru hull, open tee and drain line backwards.
Peter
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Old 10-21-2013
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Re: Partial winetrization???

Thanks Pete,
I s'pose it would be worth a $5er worth of pink stuff if we get one of those beautiful winter days
My concern with the rest of the thru-hulls is the water below the valve within the fixture.
It's been intimated that the glass hull above the waterline *could* possibly transmit/transfer sub-freezing temps thru it's mass to freeze the bronze fittings?? Since most of them are well below the waterline, I'm not so worried...but.....
AFA the scupper lines.ill just dribble enuff pink stuff thru them ta show on the transom fittings and let it go at that. Since I'll be covered; I don't expect to get any significant amount of water in the 'pit.

Best,
Paul
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Re: Partial winetrization???

Paul
Are you on the Chessie? When was the last time you or your marina saw ice in the harbor where you could maybe walk on it or when blubbers where needed. I'm in LIS and it gets a lot cold here than down south where you are. Don't over think it.
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Old 10-21-2013
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Re: Partial winetrization???

Not to hijack this thread, but I have a topical question: My boat has an inboard raw water cooled engine and I'm sitting in freshwater. It is my intention to take the boat out of the water in the near future for the winter, but below freezing temperatures (27-32 F) can be expected at night over the next few weeks. I am going tonight to pull the zinc out and drain the engine, but at what point do I need to worry about the water in the thru hull freezing? My nightmare is for it to burst the thru hull and put my boat on the bottom. Is there generally enough room inside the water lift muffler to allow for expansion due to freezing, or do I need to attempt to drain that as well? (first fall with a boat with an inboard..)

Thanks!
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Re: Partial winetrization???

A few nights where it dips below freezing shouldn't be a problem. The surrounding water is still well above freezing and should keep the engine and its systems above freezing as well. Once you haul, the systems will need winterizing of course. If you can drain the waterlift muffler, do that. Then flush it all with antifreeze.
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Re: Partial winetrization???

Remember, most, if not all your thru hulls are probably 6" or more below the water line. When was the last time you saw ice more than 1-2" thick? It will have to be really cold for a couple of days before the interior temps of your boat goes below freezing as the water temp will keep the boat warmer than air temps.

As far as winterizing the engine, all I do is close my thru hull, open up my sea strainer and pour a gallon or two of AF into the strainer while the engine is running. If you have a strainer, no need to run a T fitting.
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Last edited by chuck53; 10-21-2013 at 09:57 PM.
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Old 10-21-2013
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Re: Partial winetrization???

Justified, when I was looking at boats over the winter, I saw the northern Chessie frozen for a few days. This was Jan. 27, 2013 near Charlestown, MD. Many spots seemed thick enough to walk on, but I wasn't going to take a chance!

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