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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 06-29-2008
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El Stupido

I screwed up and I want the world to know, to make me feel better.
I have changed filters a million times (I own a Mercedes Diesel) so I have a decent knowledge of this stuff. I changed my primary fuel filter and forgot, or was lazy, and did not fill the canister with fuel. So of course I have air in the system. My lift up pump is not working so I cannot get the bubbles out.
Now the engine will not crank at all so I get to deal with a serious problem.
Good lesson to take your time and think, even when doing routine simple stuff.
I feel better, I am the original EL Stupido

John
s/v Daphne
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Old 06-29-2008
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Old 06-29-2008
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We all do stupid things from time to time. Get it taken care of and do as much sailing as you can before LSU becomes the 1st back to back BCS Champion!!!

Whodat!!!
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Old 06-29-2008
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El Stupido

Y'all are making me feel less stupid, thank you. I did once back out of the slip but I had a knot at the end of my spring line so I sort of like got hung up on the cleat? All was okay but there were 1.2 million people watching.

One should publicize their success, and their failures. I am still the original El Stupido.................

Laissez les bon temp rouler (sorry Gui, that is Cajun stuff) for LGHERB's nice post
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Old 06-29-2008
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If the engine won't crank even with the fittings on the injectors backed off - you may have water in the cylinders - not good! The engine should crank unless the battery is dead with air in the cylinders. A small 12v. fuel pump from NAPA inserted in the fuel line will help get the air out but don't crank an engine full of water or very bad things will happen; water is not compressible!
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Old 06-29-2008
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Water..

Sounds like water in the cylinders! Always, always, always CLOSE the engine seacock before cranking an engine after it dies from fuel/air starvation!!!!!

Ruining an impeller is rare, even when run dry for 30+ seconds, until you can re-open the seacock. Even if you do ruin an impeller it's far cheaper than an engine re-build which is where you may be at this point.

If you EVER need to crank your engine for more than few seconds to make it, or get it started you are filling the exhaust system with water that can not be expelled and that will back up into the cylinders!

I've seen engines ruined by the mere forgetfulness of leaving the engine shut down lever in the "kill" position. The owner would then crank & crank until they had filled the engine with water and required a re-build!!

Sorry about the bad news...

ONE MORE TIME!!

NEVER CRANK AN ENGINE FOR MORE THAN A FEW SECONDS WITHOUT IT STARTING IF YOU HAVE THE SEACOCK OPEN!!!!
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Last edited by Maine Sail; 06-29-2008 at 10:40 AM.
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Old 06-29-2008
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I always stop cranking, go down below, and close the raw water seacock if the engine does not start after 10 seconds or so of cranking. Then, as soon as it's going, I jump down below and get that seacock back open.

helekai36, I must humbly disagree, in part, with your comments about impeller destruction. From everything I've read: Depending on age and maintenence, an impeller can die a quick death from being run dry. If small pieces result, they can get sucked into areas of the engine cooling water circulation system that will make them exceedingly difficult to get out.

Jim

Last edited by SEMIJim; 06-29-2008 at 11:04 AM.
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Old 06-29-2008
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Quote:
Originally Posted by SEMIJim View Post
From everything I've read: Depending on age and maintenence, an impeller can die a quick death from being run dry....
Like Halekai, I've found the (Yanmar) raw water impellers to be very resilient, and never had any trouble running them dry for cold-weather starts, after filter changes, etc. I do inspect the impeller once or twice a season, and replace it if it shows the slightest evidence of wear. So it could be a question of older/worn impellers being more susceptible to damage when run dry.

Yet another reason to replace those impellers as preventative maintenance!
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engine not starting

Don't know what engine you have.If water gets on top of piston,the engine will lock up until water is removed.Check to see if your engine has a compression release,if it does hold it open and spin engine over to blow water out exhaust.Close the seacock and start over,You probably have air in system
instead of water on piston.
Good luck
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Old 06-29-2008
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sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice
Who is this El Stupido who uses my name as if it were his own? (g)
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