873 duetz lost oil pressure digging @ steep incline

[slewpumper]

Well not exactly sure what I have done now. Was trying to dig out a limestone foundation with my Bobcat today and now I am stuck. The bobcat was at a steep decline nose first. I had bucket full of clay and limestone and could not go forward or back. I could not lift the bucket up to get myself out and was sitting like this for a few minutes trying to get out. All of a sudden the motor started idling faster and it sounded like the motor started knocking. When I turned the key off the bobcat kept running. When I turned the key all the way to the left position (pressure relief position) it finally quit. I had to go out the back window in order to get out. I had my nieghber over with his tractor but could not pull it out. He is going to bring over his bobcat tomorrow and dig my bucket out and then try and pull me out. My question is did I loose oil pressure because the bobcat was sitting at such a steep angle. My neighber thinks it might just be that it ran out of fuel. It was down to a 1/4 of a tank. I sure hope I didn't hurt the motor. It has a 83 horse Duetz. Any ideas?

 

[Tazza]

I too believe it to be a lack of fuel issue too.
Usually it bogs down and you have no power then it just stalls.

 

[hvyduty]

I too believe it to be a lack of fuel issue too.
Usually it bogs down and you have no power then it just stalls.

The knock was more than likley oil being picked up from the crankcase through the breather and burning in the engine .I have be told duetz engines will do this if the loader is tiped over reving the engine until either it runs out of oil or blows up,either way not good.so to get yours to stop is pretty lucky.once you get it on level ground remove the glow plugs and wind it over to clear any excess oil,check the oil level and cross your fingers when you start it.

 

[Fishfiles]

The knock was more than likley oil being picked up from the crankcase through the breather and burning in the engine .I have be told duetz engines will do this if the loader is tiped over reving the engine until either it runs out of oil or blows up,either way not good.so to get yours to stop is pretty lucky.once you get it on level ground remove the glow plugs and wind it over to clear any excess oil,check the oil level and cross your fingers when you start it.

I have seen diesel engines run away on engine oil many times , usually from a seal in the turbo blowing out , once the motor is running and hot if oil is induced into the cylinders it will ignite and keep the motor running even after you turn off the key switch which shuts down the fuel flow into the motor , what I surmize happen was that the oil that found it's way into the cylinders was exhausted and it finally turned off because there was no more oil gettig into the cylinders ,it had nothing to do with turning the key to the pressure release , as long as oil was being supplied you would have not been able to shut it down , the only way I know of to shut it down in this situation would have been to cut off the air flow by jamming rags into the air cleaner , the knock doesn't sound too good , chances are pretty good you did some internal damage , like a bent rod , good luck

 

[slewpumper]

I have seen diesel engines run away on engine oil many times , usually from a seal in the turbo blowing out , once the motor is running and hot if oil is induced into the cylinders it will ignite and keep the motor running even after you turn off the key switch which shuts down the fuel flow into the motor , what I surmize happen was that the oil that found it's way into the cylinders was exhausted and it finally turned off because there was no more oil gettig into the cylinders ,it had nothing to do with turning the key to the pressure release , as long as oil was being supplied you would have not been able to shut it down , the only way I know of to shut it down in this situation would have been to cut off the air flow by jamming rags into the air cleaner , the knock doesn't sound too good , chances are pretty good you did some internal damage , like a bent rod , good luck

Good News! Got the bobcat out of the hole today. Got it on the level and checked oil. Oil was halfway up on dipstick so crossed my fingers and hit the starter. The old girl started right up and had no knock at all. I thank my stars I was able to get it to shut off before the motor got damaged. Hardest part of the whole thing was getting the rear window back in. Thanks all for your input.

 

[shallowwater9]

Good News! Got the bobcat out of the hole today. Got it on the level and checked oil. Oil was halfway up on dipstick so crossed my fingers and hit the starter. The old girl started right up and had no knock at all. I thank my stars I was able to get it to shut off before the motor got damaged. Hardest part of the whole thing was getting the rear window back in. Thanks all for your input.

Glad you got your b-cat out safely. I am new to the art of bobcatting and am needing info on how steep of a till can I go up and down. How steep was your incline? I am looking at maybe a 45 or 55 degree slope. Even if I can safely go down, it scares me to think I can't get back up. My b-ct os a 773 turbo with steel tracks.

 

[sterlclan]

Glad you got your b-cat out safely. I am new to the art of bobcatting and am needing info on how steep of a till can I go up and down. How steep was your incline? I am looking at maybe a 45 or 55 degree slope. Even if I can safely go down, it scares me to think I can't get back up. My b-ct os a 773 turbo with steel tracks.

trust your butt-o-meter if it feels too steep it probably is 45 sounds too steep for me just my 2c.........Jeff