[C320-list] Engine Winterization

jonvez at comcast.net jonvez at comcast.net
Fri Nov 18 09:16:54 PST 2005 

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 
> > >!!- ______________________________________________ 
> > >!!- C320-List at catalina320.com mailing list 
> > >!!- Archives Here: 
> http://mail.catalina320.com/pipermail/c320-list_catalina320.com/ 
> > >!!- Unsubscribe Here: 
> http://mail.catalina320.com/mailman/options/c320-list_catalina320.com 
> > > 
> > > 
> > >------------------------------------------------------------------------ 
> > > 
> > >!!- ______________________________________________ 
> > >!!- C320-List at catalina320.com mailing list 
> > >!!- Archives Here: 
> http://mail.catalina320.com/pipermail/c320-list_catalina320.com/ 
> > >!!- Unsubscribe Here: 
> http://mail.catalina320.com/mailman/options/c320-list_catalina320.com 
> > > 
> > 
> > -- 
> > 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 
> > 
> > !!- ______________________________________________ 
> > !!- C320-List at catalina320.com mailing list 
> > !!- Archives Here: 
> http://mail.catalina320.com/pipermail/c320-list_catalina320.com/ 
> > !!- Unsubscribe Here: 
> http://mail.catalina320.com/mailman/options/c320-list_catalina320.com 
> 
> 
> !!- ______________________________________________ 
> !!- C320-List at catalina320.com mailing list 
> !!- Archives Here: 
> http://mail.catalina320.com/pipermail/c320-list_catalina320.com/ 
> !!- Unsubscribe Here: 
> http://mail.catalina320.com/mailman/options/c320-list_catalina320.com 
> 
> 
> !!- ______________________________________________ 
> !!- C320-List at catalina320.com mailing list 
> !!- Archives Here: 
> http://mail.catalina320.com/pipermail/c320-list_catalina320.com/ 
> !!- Unsubscribe Here: 
> http://mail.catalina320.com/mailman/options/c320-list_catalina320.com

More information about the C320-list mailing list