SailNet Community

SailNet Community (http://www.sailnet.com/forums/)
-   Diesel (http://www.sailnet.com/forums/diesel/)
-   -   Why cann't we kill this engine. (http://www.sailnet.com/forums/diesel/57429-why-cannt-we-kill-engine.html)

davidpm 08-25-2009 12:23 AM

Why cann't we kill this engine.
 
We certainly have been trying.
Catalina 30 with original 3 cycl universal.

Yesterday
Started it up, check that it was pumping water out the back.
Headed for the harbor. About 5 minutes later I'm at the entrance #2 and I notice the engine is running hot and the water has stopped pumping.

No problem I just turn off the engine and sail away. I'm thinking that last year the owner had the same problem only on the way in the harbor and a loud noise happened for a few seconds before the engine stopped.
Next day started up and it was fine.

Maybe something like that was happening to me.

After a days sail I come back in, start the engine, no water. Turn it off and call for tow.
Put everything away, I'm in the truck driving away then I remember. I don't think I shut off the raw water valve. O crap, I don't remember turning it on.
Drive back and it was closed the whole time.
Several questions. How could I possibly forget something that important that I've done a hundred times?
If I forgot, why didn't I remember during the sail or tow wait.

Had the mechanic check the raw water pump and the veins looked fine.
I thought you would tear them up in seconds.
I probably ran it dry for a minute.
It must run for a while with the water in the muffler.

So what is wrong with this engine that it starts every time easily seems to be doing white smoke less and less despite our best efforts to kill it.

Between the two of us we seem bound to kill it with stupidity.

I should move this to the dumb move thread. And I was doing so well all year!!
I lamanted my departure list and will check it every time. Too much to remember.

jjablonowski 08-25-2009 05:06 AM

From an earlier suggestion on SailNet: We keep the key to the diesel hanging from a cup hook next to the raw-water intake valve.

davidpm 08-25-2009 02:55 PM

Quote:

Originally Posted by jjablonowski (Post 516599)
From an earlier suggestion on SailNet: We keep the key to the diesel hanging from a cup hook next to the raw-water intake valve.


Good Idea

deniseO30 08-25-2009 09:24 PM

Globe makes a "run dry" impeller. I forget if it's 5 or 15mins. I think the rubber is silicone which against the bronze housing probably isn't all that terrible to run a dry a few mins. just my WAG. :)

CalebD 08-25-2009 10:54 PM

I second the hang the ignition key on the raw water intake valve.
We also turn off our fuel line since we have a gas engine (A4). It is usually pretty easy to remember that both valves need to be opened as there is only enough gas after the valve to run for a few minutes without cutting out.
There probably was some water in the water pumps impeller chamber that provided lubrication.
Keep trying. I hear that persistence usually pays off. Next time try letting the fuel level in the tank go way down and see if you can clean some of the crud in your diesel tank out with the boats filters. I hear this is a pretty good method for needing a tow unless you have spare filters, extra fuel and know how to bleed the fuel line once the new filters are in place.
Hope you are well.

davidpm 08-25-2009 11:01 PM

Quote:

Originally Posted by CalebD (Post 516967)
Keep trying. I hear that persistence usually pays off. Next time try letting the fuel level in the tank go way down and see if you can clean some of the crud in your diesel tank out with the boats filters.

Thanks for the encouragement:)

hellosailor 08-26-2009 12:01 PM

"How could I possibly forget something that important that I've done a hundred times?"
Easily. That's why aircraft often have those big red "REMOVE BEFORE FLIGHT" ribbons hanging off all sorts of important things.

I'd also say to put the key on the raw water valve. Just buy a bright red neck loop for it, hang the loop next to or on the valve, can't miss it that way. Or...order a "REMOVE BEFORE FLIGHT" strip from your local pilot shop.<G>

ottos 08-26-2009 01:34 PM

Or do a search for Sporty's Pilot Shop online - I'm sure they carry them.

casioqv 08-27-2009 12:42 PM

Why not install an audible alarm on your engine temp? I put them on everything I own with a combustion engine. One of my cars has an "engine watchdog" which is rather pricy, but much cheaper than a rebuild:
ENGINE WATCHDOG TM2, Engine Coolant Temperature Alarm, Gauge & Sensor

An even cheaper solution is a 105C button type mechanical thermostat attached to your engine with thermal epoxy, and wired in series with a 12v audible alarm.

roline 08-27-2009 06:32 PM

In the case og the Yanmar 2GM20, I like the idea of a temp snap switch mounted on the engine. It could be wired in parallel with the water switch which would turn on the alarm and light... I can put my hand on the engine block after a hard run so the normnal engine temp on the outside with water is under 130F. a 130 to 150F snap switch would allow for earlier detection..


All times are GMT -4. The time now is 04:59 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012