Best to use low tox propylene glycol based engine antifreeze. The alcohol in "plumbing" antifreeze is hard on rubber parts, and provides no lubrication. Same goes for the head. The Wilcox Crittenden literature specifically advises against using alcohol based antifreeze in their heads.
Steve Thomas C&C27 MKIII Port Stanley, ON -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of Pat Nevitt Sent: Friday, October 19, 2012 11:08 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Winterizing a 2GM20F Sebastien, I have the same engine, and here are the steps I was taught: a.. Purchase 1 gallons of pink (general with no corrosion inhibitors) and one gallon of blue or purple anti freeze with corrosion inhibitors. b.. Find the winterizing hose and have it ready. c.. Close the raw water thru hull in the engine compartment, and loosen the clamps on the hose at the thru hull. d.. Remove the hose from the thru hull barb. Attach the winterizing hose, on the barb and place the other end in a 2 gallon bucket. e.. Pour 1 gallon of pink antifreeze into the bucket. Have ready the blue or purple. f.. Start the engine, and monitor the antifreeze level in the bucket. g.. Right when it is about to get to the bottom, add the entire gallon of blue or purple into the bucket. h.. Allow the engine to digest all of it to the bottom of the bucket, and right before sucking air, shut down the engine. i.. Replace the hoses and re-tighten the hose clamps. I have someone else run the engine while I do the hose/bucket part. It takes about a minute to run the stuff out of the bucket. It isn't very fast. Pat On Fri, Oct 19, 2012 at 10:53 AM, Sébastien Lemieux <s.lemi...@umontreal.ca> wrote: I'll be winterizing my 2GM20F for the first time tomorrow (saturday) and would like some advices on the practical way to fill up the raw water circuit with antifreeze. I plan on detaching the intake tube of the raw water circuit from the seacock and putting it in a bucket filled with antifreeze (I'm aiming for 2 gallons, is that enough?). Then, I assume I need to start up the engine and wait until antifreeze comes out from the exhaust thruhull. Should I just crank up the engine (with decompression lever open)? If I need to start the engine, how long should I expect to it? Do you leave the tube in the bucket unattended while you stand near the control panel to stop the engine? Thanks in advance! Sébastien Lemieux Merlot X - C&C 30 mk2 1987 Mooney Bay - Lake Champlain _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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