repairing diesel engine on the dry - Page 3 - SailNet Community
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post #21 of 24 Old 10-09-2012
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Never, ever, never, ever connect a hose directly to the engine rw intake. Never.

Here's that "missing link"

Winterizing A Diesel Engine On The Hard - SailboatOwners.com

Not very hard, explains it all.
Ahh, thanks so much. I was going crazy thinking it had been Maine Sail after all, but couldn't find!

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post #22 of 24 Old 10-27-2012
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Re: repairing diesel engine on the dry

I have seen people hook a water hose directly to the engine and blow the seals right out of a brand new water pump, let the engine do what it naturally does, suck the water up.
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post #23 of 24 Old 10-27-2012
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Re: repairing diesel engine on the dry

First look at your engine's tech manual for the raw water pump specifications - rpm vs. gallons per minute. Get a large tub (about 10 gallons) and put it into your cockpit' and adjust the water (garden) hose inflow to the tub to be approx. that needed, any spillover from the tube will empty through the cockpit drains. The goal is to keep the tub full when the engine is running.

Most Diesel boat engines in the 30 hp range will need ~3 gallon per minute for running at
~2000 rpm.

Run/extend a hose from the raw water pump to the bottom of the tub, completely fill the hose (no air); start the engine; watch/monitor (need assistant) the level in the tub so that you 'have enough' in the tub at all times.
A cheap plastic mason's tub (Home Depot, etc.) will be in the 10 gallon size range.
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post #24 of 24 Old 10-28-2012
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Re: repairing diesel engine on the dry

Quote:
Originally Posted by RichH View Post
.....Most Diesel boat engines in the 30 hp range will need ~3 gallon per minute for running at ~2000 rpm.
I think this a rather light. I never really thought of the GPM of the seawater pump. Having recently winterized, I pumped 5 gallons of antifreeze through the genset pretty quickly, so I looked it up. It has a 13hp Yanmar and pumps 5.5 GPM.

Edit: the 26hp version of the same gen, pumps 13 GPM.


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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
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