Hi Dave, Your method saves buying chemicals, and saves poluting the environment, but the old method of sticking the engine's water intake hose into a bucket of antifreeze and running the engine until the pink stuff exits the exhaust is slightly more thorough and less crawling around. Our muffler has no drain. I use two buckets. One has a hose bibb fitting at the bottom and a short hose with a ball valve allows me to close the valve before starting the engine. The second bucket, is what I use to scrub the deck and it gets hung by rope tied to the stern rail. It gets positioned under the transom and next to the exhaust so it can be swung under the exhaust to catch the pink stuff when it bright pink. I let the seawater shoot past and collect the last gallon of pink. I use it for the sink drains. Chuck S
> On 11/20/2024 9:14 AM EST Dave S via CnC-List <cnc-list@cnc-list.com> wrote: > > > I never pumped antifreeze through the seawater side of my 2gm20f, and did not > have a problem in 10 yrs of Toronto winters. I did drain the seawater side > by disconnecting the lower water pump hose, and draining the seawater > strainer and muffler. > > Dave > > Sent from my iPhone > > > > On Nov 20, 2024, at 5:44 AM, Paul Hood via CnC-List <cnc-list@cnc-list.com> > > wrote: > > > > > > > > > I can’t answer your question, but I also thought about that recently and I > > realized that antifreeze is running around the head. While the block is > > cold, the thermostat is closed, directing the antifreeze around the head. > > Never had a problem but was curious about the water that might be remaining > > in there. > > > > > > > > Paul Hood > > > > REFUGE – 1981 C&C34 on Georgian Bay /) > > > > > > > > From: David Knecht via CnC-List <cnc-list@cnc-list.com> > > Sent: November 20, 2024 8:33 AM > > To: CnC CnC discussion list <CnC-List@cnc-list.com> > > Cc: David Knecht <davidakne...@gmail.com> > > Subject: Stus-List Winterizing the engine > > > > > > > > After winterized my boat I got to thinking about the process of pumping > > antifreeze through the engine and water tank system. Some people winterize > > their house water system by blowing all the water out of the lines instead > > of pumping in antifreeze. If you did the same with the seawater side of > > the engine by simple running the engine until nothing came out of the > > exhaust hose, wouldn't that work to protect the engine from freezing over > > the winter? That might be a problem running a standard impeller in the > > water pump dry, but with a run-dry impeller, I don't see why it wouldn't > > work. Dave > > > > > > > > S/V Aries > > > > 1990 C&C 34+ > > > > New London, CT > > > > > > [image001.png] > > > > > > > > Your contributions help pay the fees associated with this list and help to > > keep it active. Please help by making a small contribution using PayPal > > at: https://www.paypal.com/paypalme/stumurray All contributions are > > greatly appreciated. > > > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal at: > https://www.paypal.com/paypalme/stumurray All contributions are greatly > appreciated. >
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