I also run the engine once the water was out of cylinders, but I am not sure if
this is a good idea. The oil got very nicely mixed with water (completely grey,
evenly mixed emulsion). It was difficult to pump that mess out. Honestly, I
don’t know what is better: mix the water with oil and pump it out or pump out
the oil and water _before_ they get mixed together.
Marek
From: Gary Russell via CnC-List
Sent: Thursday, October 22, 2015 7:54 AM
To: C&C List
Cc: Gary Russell
Subject: Re: Stus-List Hydrolocked!
Dave,
I wouldn't lose a lot of sleep. I hydrolocked my Universal Diesel a few
years ago (no anti-siphon loop in the exhaust plumbing). Tried to start it but
it wouldn't turn over. Like you, I thought it had a dead battery so a added 4
more house batteries. Starter got hot, but didn't turn over. At this point it
occurred to me that the engine was hydrolocked. A couple of days later I took
a BIG socket wrench and SLOWLY turned the engine over. It wasn't easy, but it
eventually turned over. You have it much easier, because Yanmars have a
compression release on the top of the vale cover. Just release the compression
and turn the engine over and it will expel the water. After several rotations,
I started the engine. I ran it for a few minutes and then changed the oil and
filter. After 5 years, it still runs great (just sold it).
Gary
~~~~~~~_/)~~~~~~
On Thu, Oct 22, 2015 at 3:47 AM, David Pulaski via CnC-List
<[email protected]> wrote:
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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