I use concentrated engine antifreeze, but I sure don't use 4 gallons.
Steve Thomas
C&C27 MKIII
----- Original Message -----
From: robert via CnC-List
To: [email protected]
Cc: robert
Sent: Thursday, October 22, 2015 23:40
Subject: Stus-List Antifreeze
Marek / Chuck:
I have never checked the actual concentration of the AF leaving the
exhaust.....been doing the same thing for 10 years now....you are making me
nervous!
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-10-22 11:51 PM, Chuck S via CnC-List wrote:
agree w Marek,
I use about 4 gallons to do the boat if I capture the exhaust. 6 if I
don't. Ace Hardware has the best price now less than $2.
Chuck
Resolute
1990 C&C 34R
Broad Creek, Magothy River, Md
----------------------------------------------------------------------------
From: "Marek Dziedzic via CnC-List" <[email protected]>
To: [email protected]
Cc: "Marek Dziedzic" <[email protected]>
Sent: Thursday, October 22, 2015 10:48:19 PM
Subject: Re: Stus-List Hydrolocked!
Rob,
You may not have overly low temperatures in Halifax, but 2 gal of AF would
not be enough here (in Ottawa). Have you ever checked the actual concentration
of AF that is _leaving_ the exhaust? I use about 5 gal (20 l - 25 l). The extra
$3.50 is a cheap insurance for not busting (bursting) the heat exchanger or the
muffler.
Some interesting tests at Compass Marine:
http://www.pbase.com/mainecruising/engine_freeze_protection .
Marek
1994 C270 “Legato”
Ottawa, ON
From: CnC-List [mailto:[email protected]] On Behalf Of robert
via CnC-List
Sent: October-22-15 21:19
To: [email protected]
Cc: robert
Subject: Stus-List Hydrolocked!
Chuck / Dave:
Chuck, I am with you....I don't understand how a few cups of antifreeze
would get to the engine this way.
Dave, I do something similar to winterize the engine, but no exactly the
same. While on the hard, I fill a 5 gallon bucket in the cockpit with a fresh
water garden hose keeping it filled and over flowing if it happens....I run a
hose from the bucket to the raw water pump (remove the raw water hose to the
pump, of course)......start the engine to flush the salt water and warm up the
engine....shut the engine down......empty the bucket of fresh water.....put a
gallon of concentrated antifreeze plus one gallon of fresh water in the
bucket....restart the engine until I see the antifreeze exiting the exhaust
thruhull....system full of antifreeze......shut down the engine.....my Yanmar
2GMF engine and exhaust system takes about the 2 gallons .....always a little
left which I put in the head.
Are you absolutely sure you have a hydrolock? As mentioned by a lister,
first check your impeller in the raw water pump......if it is fine and all
intact, I don't know how you could have a hydrolock but I am no marine engine
mechanic.
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-10-22 8:55 PM, Chuck S via CnC-List wrote:
Dave,
I'm surprised a few cups of antifreeze would get to the engine by the way
you describe. The point where the raw water shoots into the exhaust should be
angled to enter the exhaust and not the engine. Before it backs up into the
engine, your hose from cockpit to engine, raw water strainer, the heat
exchanger, exhaust hose and muffler needs to fill first, before it can back
into the engine. That's a lot of water to move. Also, remember if the engine
was stopped, the exhaust valve is closed on 3 of the 4 cylinders, so the
intrusion is limited. Starting the thing might blow it all out?
If I remember right, I can open a water hose under pressure to my raw
water pump but it doesn't pass through the impeller until I start the engine
turning. I suspect your pump impeller may be worn and need replacement?
I'm hoping it is not hydolocked, but not starting for some other reason
probably electrical, key off, switch off, batteries turned off. Did you hear
the solenoid click? Did the starter whine or hum at all?
Chuck
Resolute
1990 C&C 34R
Broad Creek, Magothy River, Md
--------------------------------------------------------------------------
From: "David Pulaski via CnC-List" <[email protected]>
To: [email protected]
Cc: "David Pulaski" <[email protected]>
Sent: Thursday, October 22, 2015 3:47:46 AM
Subject: Stus-List Hydrolocked!
Thanks all for the words of advice! I'm going to be a wreck until Sunday
when I can get there to try to resolve this situation.
So here's how I managed to do this:
I was attempting to winterize the engine, boat still in the water. First
I just ran the engine normally for a while, maybe 30-45 minutes, while I got
everything ready. After I shut it down and closed the raw water intake
seacock, here was my winterizing plan: 5 gallon bucket sitting on the cockpit
sole, filled with pink antifreeze. A length of hose running through the
opening port in the aft cabin from the cockpit to the engine compartment,
connected to the raw water side of the water strainer. Seemed simple enough: I
could start the engine and watch the level in the bucket, adding more if
necessary.
My big mistake was attempting to prime the hose with antifreeze. I was
just using a small cup to pour some antifreeze into the hose from the end up in
the cockpit; no pressure. It didn't occur to me that the small height
differential would be enough to push water past the raw water pump into the
cylinders, but apparently it did. I didn't realize what had happened until I
attempted to start the engine, and it wouldn't turn over. At first I thought
the batteries didn't have enough juice to restart after my cold startup a few
moments earlier. I stabbed the button a couple of times, and then it dawned on
me.
I went back down below and disconnected the exhaust hose from the
manifold riser, and sure enough, pink poured out. Perhaps I'm having a stupid
moment but I'm really still scratching my head over this. I really didn't pour
much down the hose, just a couple of cups. But I'm actually somewhat hopeful
that the contents of the cylinders is mostly antifreeze - should give some
corrosion protection I'm hoping.
Until sunday...
-Dave
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