[C320-list] Engine Winterization
jonvez at comcast.net
jonvez at comcast.net
Mon Nov 21 05:43:38 PST 2005
Thanks John. I assume the red is the same makeup as the orange, just different manufacturers?? I too change mine every year in the fall before layup. I didn't want to take any chances this season until I was sure about whether to flush or not. Looks like next season I will make the switch! Thanks again....
Regards,
Jon Vez
-------------- Original message --------------
> Jon,
>
> As per the recommendation of my Yanmar dealer, I switched over to the red
> antifreeze two years ago. I did not flush, I have replaced my antifreeze again
> last year and it came out clear and clean. I replace my antifreeze every year
> as per the Yanmar service manual. Flushing is not required.
>
> John (Sojourn 645)
>
> jonvez at comcast.net wrote:
> When I flushed my internal (toxic) cooling system before hauling. I was looking
> at the dexacool stuff and all over the bottle it claims that it will work with
> 'any color' antifreeze.
> Does anyone know if the thorough flushing of the green to switch over is
> specific to Yanmar or perhaps diesels??
>
> On the non-toxic: You really should choose color (pink, purple, blue) based on
> where you live. The -50 rating on the pink is a misnomer. The stuff starts
> slushing at 12 and needs to be completely undiluted for its full rating
> protection. I use increased protection based on the value of what I am
> winterizing here in New England.
>
> Pink for water tanks--pretty easy to empty of water and no worries around
> dilution
>
> Purple for: Holding Tank, Hot Water heater (after draining), bilge, shower
> sump--good chance all water is not removed from these systems. Particularly
> water heater
>
> Blue--Engine/muffler--1.5g of this is a small price to pay for insurance there
> will be no issues with the engine and infamous muffler (the drain cock on my
> muffler is seized anyway, so I can't drain).
>
> I believe G. Douglass mentioned at the tour that winterization issues is the
> biggest reason behind water heater issues....haven't had a problem with heater
> or muffler using this system.
>
> Regards,
>
> Jon Vez
>
> -------------- Original message --------------
>
> > The new antifreeze for the internal engine system is ethylene glycol based,
> > but has been changed from the green color to an orange (Dexacool from
> > Prestone) which could easily be confused with the non-toxic polyprolylene
> > based pink stuff. The toxic stuff goes in the internal system, if its orange
> > its supposed to be good for 5 years. It comes pre-mixed with water 50-50,
> > which is how it is supposed to be used, and how I bought mine. I spoke with
> > Mack-Boring, Yanmar distributor for the east coast, and they recommended it
> > with careful flushing. It does not mix with the old green stuff, they will
> > sludge if allowed to mix, so if doing a change over you must flush the green
> > stuff several times and try and get it out of the overflow and the hot water
> > heater. There were several postings on the technique about two months ago.
> >
> > The non-toxic polypropylene comes in at least three flavors as was just
> > mentioned in the last day or two. The pink is definitely for the fresh water
> > tanks, unless you need below -25 degree protection, and then god bless you!
> > The purple has rust inhibitors, so I would not use it in the fresh water
> > system, but is what I use in my raw water engine and muffler. Wouldn't want
> > to drink it, but not toxic to the environment.
> >
> > I hope this may help clear up some of the confusion. I notice that the
> > salespeople are not very helpful, and the directions on the bottles
> > breakdown since they don't address the marine engine raw water use. I had
> > to go to West Marine for the purple one with the rust inhibitor.
> >
> > -----Original Message-----
> > From: C320-List-bounces at catalina320.com
> > [mailto:C320-List-bounces at catalina320.com] On Behalf Of James R. Harrison
> > Sent: Friday, November 18, 2005 11:08 AM
> > To: C320-List
> > Subject: Re: [C320-list] Engine Winterization
> >
> > Our new boat (hull #855 w/Yanmar 3GM30F) was commissioned and delivered
> > (10/2001) with pink antifreeze in the closed system by our Catalina dealer,
> > Tidewater Marina in Havre de Grace, MD. We
> > were advised to continue using it at a new owners' seminar. We have not had
> > any problems using it. Perhaps it depends on the engine?
> >
> > Jim Harrison
> > "Painkiller", Catalina 320, #855
> > Middle River, Sue Creek, Baltimore Yacht Club
> >
> > Fred Bruegmann wrote:
> >
> > > Pink stuff is used routinely to winterize raw water cooled blocks, it
> > > just isn't suitable for use as coolant in a fresh water (closed cooling)
> > > engine. You really shouldn't use automotive antifreeze as its toxic and
> > > gets pumped into the water when the boat is first started after launch
> > > in the spring.
> > >
> > > Fred
> > >
> > > T. Scott Thompson wrote:
> > >
> > > >1. Pink stuff is fine for raw water side / winterization. Not suitable
> > for use as engine coolant or to winterize the block.
> > > >
> > > >2. Yes, although you can replace it with pink stuff instead. Stuff the
> > intake hose in a jug or two and run the engine briefly to do this. Do that
> > anyhow to winterize the heat exchanger.
> > > >
> > > >3. Will fill itself in the spring! Provided you open the seacock! Don't
> > forget.
> > > >
> > > >Sent from my BlackBerry wireless handheld.
> > > >
> > > >-----Original Message-----
> > > >From: BAdams3491 at aol.com
> > > >Date: Thu, 17 Nov 2005 15:50:56
> > > >To:C320-List at catalina320.com
> > > >Subject: [C320-list] Engine Winterization
> > > >
> > > >Two Questions:
> > > >
> > > >Nigel Calder says to run the same 'pink' stuff thru the engine to
> > winterize
> > > >it that we run thru the water system. The label on the container says
> > "Not
> > > >for use in engines." What does everybody else do?
> > > >
> > > >Does the water in the aqua muffler need to be drained? If so, when
> > starting
> > > >the engine in the spring, will it fill back up by itself or does it need
> > to
> > > >be refilled?
> > > >
> > > >Okay, three questions.
> > > >
> > > >Thanks,
> > > >Bert
> > > >At Ease
> > > >#442
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> > > >
> > > >------------------------------------------------------------------------
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> > > >
> > >
> > > --
> > > Fred Bruegmann
> > > Staff Technical Analyst
> > > St. Joseph Technology Center
> > > Whirlpool Corporation
> > > St. Joseph, MI 49085
> > > Phone: (269) 923-3751
> > > Fax: (269) 923-6117
> > > Email: bruegf at sjtc.whirlpool.com
> > >
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