Yup, that was item #2 on my list of work activities.
An engine is a positive displacement air pump. It
will spit water out the exhaust once you start
rolling it over, as I'm sure you've noticed before.
Cheers, Russ
Sweet 35 mk-1
At 06:05 AM 22/10/2015, you wrote:
When I had my engine hydrolocked, I was on the
hard, so this was not the issue. However, I
donât imagine that you can pump much water when you turn the engine by hand.
One thing that nobody mention yet (and it should
be done) remove at least some water from the
exhaust side of your engine. If you got
hydrolocked, it means that your muffler is full
of water and it is now backing up.
On my Perkins there is a rubber piece that
connects the heat exchanger to the exhaust. I
removed that piece and sucked out all the water
I could get at. My Pela pump earned its keep that day.
You want to have at least some spare capacity
for water when you start the engine again. No
question, if you do it in the water, close the
seacock. You donât want to add more water to the problem.
Marek
From: <mailto:cnc-list@cnc-list.com>Indigo via CnC-List
Sent: Thursday, October 22, 2015 7:54 AM
To: <mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com
Cc: <mailto:ind...@thethomsons.us>Indigo
Subject: Re: Stus-List Hydrolocked!
Isn't another "easy" way to turn over the engine
repeatedly before starting with the seasick
open? I have been told to shut the sea cock
after one or two failed starting attempts
(beginning of season / cold weather) and only
re-open when the engine is running.
Presumably this would be the same advice you
would give if hand cranking the engine to remove water from a hydro lock?
--
Jonathan
Indigo C&C 35III
SOUTHPORT CT
On Oct 22, 2015, at 00:04, Marek Dziedzic via
CnC-List <<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> wrote:
An interesting question would how did you manage to hydro lock it.
The easiest way is to use garden hose to feed
water into the cooling system with a failed
impeller. But what method did you use?
Marek
Sent from <http://go.microsoft.com/fwlink/?LinkId=550986>Mail for Windows 10
From: David Pulaski via CnC-List
Sent: October 21, 2015 16:02
To: <mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com
Cc: David Pulaski
Subject: Stus-List Hydrolocked!
Well this is a crappy way to end the
season. Short story is, I'm 99% positive that
I managed to get water in the cylinders in my
Yanmar 3GM30F, and now have a
hydrolock. Thankfully, the engine was not
running when it happened, but I *did* attempt
to crank the motor with the starter a couple of
times before I realized what had happened. So
now, I'm worried about significant damage from two angles:
1) Bent rods/crank/pistons? I'm inclined to
think that the starter motor doesn't have
nearly as much torque as the engine operating
under normal load, so I'm hoping that my
attempts to crank didn't permanently do any damage such as this. Thoughts?
2) Time: Unfortunately I can't get back there
with tools and equipment to attempt to rectify
the hydrolock until Sunday, which means the
engine will have been sitting there with water
in the cylinders for almost 4 days. It's
mostly fresh / brackish water (boat's on a
mooring in a river mouth). Chances of
corrosion in the cylinders requiring a teardown?
Anyone have any experiences with hydrolocks they'd care to share?
Ugh...
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