[C320-list] FW: Re: Engine AntiFreeze
Scott Thompson
sthompson at toad.net
Fri Apr 21 12:47:13 PDT 2006
And nothing drains the loop through the hot water heater. To get the
green stuff out of there you have to disconnect one of the water heater
hoses from the engine and blow hard.
Jeff Church wrote:
> Jon & Richard,
>
> The petcock on the stbd aft corner of the engine drains the fresh water
> portion of the heat exchanger. The other 2 petcocks drain the antifreeze.
>
> JeffC
>
> ----- Original Message -----
> From: "Richard Grunt" <RFGrunt at comcast.net>
> To: "'C320-List'" <C320-List at catalina320.com>
> Sent: Thursday, April 20, 2006 11:25 AM
> Subject: Re: [C320-list] FW: Re: Engine AntiFreeze
>
>
> On the Yanmar 3GM30 F there are three pet cocks to drain, one high on the
> starboard side, one near the oil filter on port, and another port one
> further towards the stern. They are diagramed in the engine manual. NOTE:
> when I spoke with Mack Boring in the fall before changing my green prestone,
> they recommended premixed Dexacool, but that all of the green had to be
> washed out with 2-3 flushes before adding. If the Dexacool, which is orange,
> mixes with the Green, then it can turn to sludge and destroy your engine. I
> used fresh water from a hose to do the flushing since the plain water was
> only in the system for a few minutes. The advantage to using the premixed
> (for which you pay extra for the water!!) is to avoid having to make a
> 50%50% mix of distilled water and antifreeze, for which you would need a
> large bucket and from which it would be awkward to pour. Both of these are
> toxic and have to be disposed of safely, not overboard. My marina took mine.
>
> -----Original Message-----
> From: C320-List-bounces at catalina320.com
> [mailto:C320-List-bounces at catalina320.com] On Behalf Of Russell Monaco
> Sent: Thursday, April 20, 2006 11:09 AM
> To: C320-List
> Subject: Re: [C320-list] FW: Re: Engine AntiFreeze
>
> along these lines-as someone who has never done anything but "top off" the
> anti-freeze...how do you drain the anti-freeze on the yanmar engine (is this
> the valve with a clear tube)?? and where do you put the anti-freeze while
> draining??, and then what do you do with the anti-freeze once removed.....
> russ monaco
>
> jonvez at comcast.net wrote:
> I use the regular Prestone green...I did recently 'upgrade' the the premix
> version, so I don't have to do the hydrometer thing to get the 50/50 mix
> right...I change every fall before layup with all other fluids....
>
> Jon Vez
>
> -------------- Original message --------------
> From: "Chris Holt"
>
>> It sounds like some of you use the green stuff. What do you use?
>> Just any old car antifreeze.
>>
>> Chris
>> #447
>>
>> ----- Original Message -----
>> From: "Karl Mielenhausen _/) "
>> To:
>> Sent: Tuesday, April 18, 2006 6:48 PM
>> Subject: Re: [C320-list] FW: Re: Engine AntiFreeze
>>
>>
>>> OD,
>>>
>>>
>>>
>>> I posed the exact question to Mack Boring... why change from green if we
>
>>> are supposed to (and do) change coolant every year or two anyway?
>>>
>>>
>>>
>>> Karl Mielenhausen
>>>
>>> 2000 C320 Hull#690 "Silver Lining"
>>>
>>> New Bern, NC
>>>
>>> http://members.cox.net/mielen/
>>>
>>>
>>>
>>> From: Orlando.Duran at AveryDennison.com [mailto:
>>> Orlando.Duran at AveryDennison.com]
>>>
>>> To: kmielen at iwon.com, C320-List at catalina320.com
>>>
>>> Date: Tue, 18 Apr 2006 15:23:13 -0700
>>>
>>> Subject: Re: [C320-list] FW: Re: Engine AntiFreeze
>>>
>>>
>>>
>>> Karl,
>
> You have a lot of research time on your hands!! :)
>
> My
>>> questions is, if you were to change your coolant each year (which I do),
>
>>> why would you need an 'extended life' coolant? Is the change worth it?
>>>
>
> cuba libre
>>> 2
> --------------------------
> Regards,
> OD
>
> Sent from my
>>> BlackBerry Wireless Handheld
>
>
>
> ----- Original
>>> Message -----
> From: C320-List-bounces
> Sent: 04/18/2006 03:03
>>> PM
> To: C320-List at catalina320.com
> Subject: [C320-list] FW: Re:
>>> Engine AntiFreeze
>
>
> The DEX-COOL-type antifreeze that Yanmar now
>>> apparently recommends would be the ORANGE antifreeze. Dexcool is an
>>> OAT-based extended-life coolant (OAT stands for Organic Acid
> Technology).
>>> DEX-COOL is a trademark of General Motors. Look for "DEX-COOL approved"
> on
>>> the label. Some brands are: Prestone Extended Life 5/150, Havoline
>>> DEX-COOL, Zerex Extreme Life 5/150, Pennzoil® DEX-COOL® Extended Life.
>>> DEX-COOL-type antifreeze is a ethylene glycol, diethylene
>>> glycol blend without silicate, phosphate, or borate inhibitors.
>>>
>
>
>
> The RED antifreeze is an extended life coolant also, but
>>> does NOT carry the DEX-COOL label. It appears to be ethylene glycol
> based
>>> with the OAT inhibitors.
>
>
>
>>From what I have read, mixing the
>>> orange with residual green can cause cause dilution of the OAT
> inhibitors
>>> at best and precipitation of the EG's silicates at worst. In other
> words,
>>> make sure all traces of the green is gone. I would expect red to have
> the
>>> same problems since it is OAT-based. I've seen some hybrid formulas
>>> marketed as being compatable with all types. I believe the hybrids are
>>> YELLOW!!
>
>
>
> DO NOT CONFUSE ANY OF THESE WITH THE ANTIFREEZE
>>> SOLUTIONS USED TO WINTERIZE (FREEZE-PROOF) WATER LINES.
>
>
>
> I
>>> am confirming Yanmar's recommendations with an email to Mack Boring
>>> tonite. Will report on what they have to say.
>
>
>
> Karl
>>> Mielenhausen
>
> 2000 C320 Hull#690 "Silver
>>> Lining"
>
> New Bern,
>>> NC
>
> http://members.cox.net/mielen/
>
>
>
> From: Russell
>>> Monaco [mailto: russgm at yahoo.com]
>
> To:
>>> C320-List at catalina320.com
>
> Date: Tue, 18 Apr 2006 13:42:34 -0700
>>> (PDT)
>
> Subject: Re: [C320-list] Engine AntiFreeze
>
>
>
> me
>>> too...by the way i have read all about the difficulty in switching over
>>> too, i just wonder, what would really happen if you just mixed the two?
>>> anyone know? would it explode or something?
> russ monaco
>
> Chris
>>> Holt wrote:
> What do people use for
>>> antifreeze in their Yanmars?
> I know about the red Dexcool stuff but
>>> right now I have the green stuff and I don't want to switch over (at
> least
>>> not right now).
> I just need to "top it
>>> off".
>
> Thanks,
>
> Chris
> #447
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