Thanks to all for the info, the procedure went very well! At least so it seem!
It finally took 2 gallons of antifreeze before the water was completely flushed. Sébastien Lemieux Merlot X - C&C 30 mk2 1987 Mooney Bay - Lake Champlain On Oct 20, 2012, at 11:11, Sam Salter wrote: > The 2GM20F is a freshwater cooled engine with a heat exchanger taking heat > out of the antifreeze that permanently surrounds the cylinder block and head. > So there is no need to get concerned about the thermostat as that is part of > the circuit that contains antifreeze and you are not going to,drain that. > The circuit that contains the raw water is: > Through hull suction, strainer, raw water pump, heat exchanger, exhaust > elbow, water muffler, exhaust through hull. > I don't put any antifreeze through that circuit; just drain it by opening the > tap at the back of the heat exchanger; opening the drain on the strainer; > taking off the raw water pump and removing the impeller; opening the drain on > the water muffler. That completely drains the raw water circuit - done. > Reverse order in the spring! > My boat is on a lake and I pull it in the fall, so it's currently on the > hard. If I was in salt water I'd probably flush freshwater through it before > I drained it. > > sam :-) > C&C 26 Liquorice > Ghost Lake Alberta > > > On 2012-10-20, at 5:37 AM, "D.Drake" <d...@rogers.com> wrote: > >> Well I never actually timed the process ,but I have never had to rush around >> during it either ! It is a little SB 8 so how much water does it really >> need (haha) >> On 20/10/2012 7:12 AM, dwight veinot wrote: >>> 3-4 minutes…your pump is very slow…mine puts at least 4 L through per >>> minute…I am surprised that you don’t have a cooling problem >>> >>> Dwight Veinot >>> C&C 35 MKII, Alianna >>> Head of St. Margaret's Bay, NS >>> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of D.Drake >>> Sent: October 20, 2012 8:04 AM >>> To: cnc-list@cnc-list.com >>> Subject: Re: Stus-List Winterizing a 2GM20F >>> >>> Sebastion >>> That's pretty much how I go about it with the exception that I have crew >>> monitor the bucket of antifreeze to ensure that it never goes dry . >>> It takes my SB 8 Yanmar about 3-4 minutes to start spewing antifreeze out >>> of the exhaust . at which point I stop the engine . The next step is to >>> open the cooling circuit drain on the right (Portside) side of the engine >>> to ensure that antifreeze is past the thermostat .The important thing is to >>> get as much water out of the internal engine circuits as possible and fill >>> it with antifreeze >>> >>> >>> >>> On 19/10/2012 10:53 AM, Sébastien Lemieux 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 >>> >>> -- >>> D.Drake 73 Jensen Healey C&C 26 >>> No virus found in this message. >>> Checked by AVG - www.avg.com >>> Version: 2012.0.2221 / Virus Database: 2441/5341 - Release Date: 10/19/12 >>> >>> >>> _______________________________________________ >>> This List is provided by the C&C Photo Album >>> http://www.cncphotoalbum.com >>> CnC-List@cnc-list.com >> >> -- >> D.Drake 73 Jensen Healey C&C 26 >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com
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