Quote:
Originally Posted by JOEA
When I questioned the dealer he stated that after filling the LP tank he moved the unit to ready for pickup. When he turned off the key the unit did not shut down. That's when they called me. 30 minutes later they called back and said the unit was shutdown using the Key. They started and restarted a few times with no issues. On Monday I'll pick it up and stop by the Cummings dealer to discuss.
Thanks
Joe
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Ignition circuits typically de-fuel diesels to shut them down in an orderly way.
Sometimes lubrication line seals in a turbo go bad, and when they do, they can allow oil into the combustion stream, thereby causing a runaway because the engine is burning your motor oil as fuel even though your electronics have called for de-fueling.
If you let this go for more than a short time and it will suck out all your oil and destroy the engine due to lack of lubrication in the lower end. If it runs away, you need to stop it immediately, even if by drastic measures.
Anytime any compression-ignition (diesel) engine will not shut off, de-fuel it immediately if you can. This can be done in a number of ways, depending on the "level of emergency."
Some options include cracking open the fuel injector line nuts. (Without high pressure in the fuel lines, it will die.)
If you don't have tools handy, you can cut a fuel line with a pocket knife (on some models, not on others they are steel.) If you can't get the fuel shut off...
Another choice is putting piece of plastic/rubber over the turbo air-air inlet. Just hold it there until the engine dies. Lack of enough air will halt combustion if it's running high enough RPM to require boost.
If you can't get to the turbo, put a plastic shopping bag over your air filter inlet (yank the filter off first if you can) and then tape/ziptie/hold it until the engine dies.
If you don't have any of these options, or if your non-mechanically-inclined wife or friend is in command, they can just take out your fire extinguisher and spray it into your air filter until the engine chokes out. You'll won't start again until you do cleanup and buy a new air filter, but it won't hurt the engine and will almost always coat the filter and block out all the air until it shuts down.
I keep a halon extinguisher for this reason and also for any propane fires because it chemically inhibits combustion by removing "a side of the triangle."
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