When I had my engine hydrolocked, I was on the hard, so this was not the issue. However, I don’t 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 don’t want to add more water to the problem. Marek From: Indigo via CnC-List Sent: Thursday, October 22, 2015 7:54 AM To: cnc-list@cnc-list.com Cc: 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 <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 Mail for Windows 10 From: David Pulaski via CnC-List Sent: October 21, 2015 16:02 To: 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... _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -------------------------------------------------------------------------------- _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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