Low hour diesel engine failure.

[ORCM]

Does anyone know what would cause a low hour motor (330hrs) to have stuck rings, and leaky pitted valves? The tractor was running fine, and then it just wouldn't start. The dealer is telling me that it's due to fuel contamination, but it seems like it would run bad when that happens

 

[Ken]

Does anyone know what would cause a low hour motor (330hrs) to have stuck rings, and leaky pitted valves? The tractor was running fine, and then it just wouldn't start. The dealer is telling me that it's due to fuel contamination, but it seems like it would run bad when that happens[/QsUOTE]

Stuck rings and burned valves I would look into just how much gas has been put in tank.
ken

 

[RoyJackson]

Does anyone know what would cause a low hour motor (330hrs) to have stuck rings, and leaky pitted valves? The tractor was running fine, and then it just wouldn't start. The dealer is telling me that it's due to fuel contamination, but it seems like it would run bad when that happens[/QsUOTE]

Stuck rings and burned valves I would look into just how much gas has been put in tank.
ken

Yep, that would be my guess, especially with the burned valves.

 

[Johnp33]

A diesel engine has a certain amount of delay from the time injection starts till the fuel ignites, when you add gasoline the mixture ignites early and it gives you increased cylinder temperature and white smoke. There is a dramatic loss of power. Carbon, sticking the rings, could be from lack of air, or retarded timing. both would give reduced power.
The pitting of the valves, with the hours of the engine that is a quality issue. There is absolutely no reason for a valve to pit at that low of hours.

 

[ORCM]

There is no way that I put gas in it. I pull from a 50gal transfer tank, and the fuel had die in it.

The tractor was running fine, till I shut it off. It wouldn't start.

 

[greasemonkeyok]

Places where gasoline can be erroneously introduced into diesel: racks, tanker, service station, and consumer's tank.

 

[RoyJackson]

There is no way that I put gas in it. I pull from a 50gal transfer tank, and the fuel had die in it.

The tractor was running fine, till I shut it off. It wouldn't start.

I suggest you drain some fuel out of the tank and get it analyzed.
It's possible the fuel was contaminated when you bought it...that's going to be very difficult to prove though.

 

[Zebrafive]

When was your transfer tank last filled? Possible they started a gas fill and OOPS! then changed hoses and filled with diesel. I am not a chemist, so I don't know if gas and diesel would mix or which would go to the bottom of the tank if they do not mix. I would have this tank sampled and tested for gas contamination. I do not see the dealer having anything to gain (you are not in warranty correct?) by lying about the cause or spiking your tractor's tank with gas.

 

[buickanddeere]

Putting around idling, light loads, low coolant temps and winter starting without using a block heater will all crud up an engine. Using a low ash post 2007 highway truck oil or a high ash engine oil?

 

[ORCM]

Told the dealer that I wanted to have the cylinder goo analyze, to see what residue compounds are found. I'm also going to have the fuel in my transfer tank analyzed by the local Cat dealer.