Redlands Okie
Veteran Member
Vapors from propane tanks leaking or popping off, pipe line leaks, oil field related vapor gas leaks all can be a darn interesting experience when operating diesel engines.
Run Away Diesel
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Dave M7040
Elite Member
- Joined
- Dec 10, 2012
- Messages
- 2,757
- Location
- Williamstown Ontario Canada
- Tractor
- Kubota M7040 Nuffield 465
Some models of Kubota's with turbo can have the problem in cold climates when the crank case vent system freezes and the crankcase oil is forced up the turbo drain line and blown into the engine as fuel. For models affected there is a recall.
Trucks delivering gasoline to service stations have been known to inhale the gas fumes and run away. Most truck tractors working in gas delivery have a mechanical flap air shut off. However, it could happen to any diesel vehicle which comes within the plume of gas vapors as tankers are unloading. Diesel engines with very dad rings can start inhaling crankcase oil fumes up past the rings.
CO2 fire extinguisher is great to cut off oxygen and stop the engine. People who tried to block off the air intake with their hand have been badly injured. Tremendous suction.
Dave M7040
Trucks delivering gasoline to service stations have been known to inhale the gas fumes and run away. Most truck tractors working in gas delivery have a mechanical flap air shut off. However, it could happen to any diesel vehicle which comes within the plume of gas vapors as tankers are unloading. Diesel engines with very dad rings can start inhaling crankcase oil fumes up past the rings.
CO2 fire extinguisher is great to cut off oxygen and stop the engine. People who tried to block off the air intake with their hand have been badly injured. Tremendous suction.
Dave M7040
Thomas
Epic Contributor
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- Apr 6, 2000
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- 31,188
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- Lebanon,NH.
- Tractor
- Kubota B2650HSD w/Frontloader & CC LTX1046 & Craftman T2200 lawn mower.
Happen w/JD Fell Buncher this past Dec. w/young operator,scare the heck out of him while trying to exit cab,service tech spent couple days making repairing just to get Buncher out of the woods on to trailer headed to shop for $$$'s repairs.
ModMech
Platinum Member
On a turbocharged engine, it is typically an oil seal failure of the turbo that introduces "uncontrolled combustibles" into the intake. But excessive fuel dilution of the oil, a sticking "rack" (2-stroke Detroits most commonly), or failed Injection Pump governor are the most common reasons on non-turbo engines.
Why not on a gasoline powered engine? Simple, they have throttles that most diesels do not have, to limit the amount of air that can enter the engine.
Why not on a gasoline powered engine? Simple, they have throttles that most diesels do not have, to limit the amount of air that can enter the engine.
Gcorron
Silver Member
I may have told this here before, not sure. I've been within "Oh Crap......RUN" range of two runaways, both Detroit.
A friend of mine was a generator guy in Gulf War 1. He had a Cat runoff while he was standing on it. He took off his field jacket and stuffed it into the air intake. The Cat swallowed the jacket whole! It did stop the runoff though and they were able to make repairs very simply. Now the good part. When Cliff told his CO about it and asked him to sign for a new jacket, the Army charged him for 'losing' his coat!!! He tried for over a year to get them to reverse that decision, but nope, they never did! Nice guys!
George
A friend of mine was a generator guy in Gulf War 1. He had a Cat runoff while he was standing on it. He took off his field jacket and stuffed it into the air intake. The Cat swallowed the jacket whole! It did stop the runoff though and they were able to make repairs very simply. Now the good part. When Cliff told his CO about it and asked him to sign for a new jacket, the Army charged him for 'losing' his coat!!! He tried for over a year to get them to reverse that decision, but nope, they never did! Nice guys!
George
Redneck in training
Elite Member
If the run away is caused by the injection pump break the filter bowl.
OP
chopped
Veteran Member
WOW thats a scarey and funny one..Not willing to replace the jacket is just plain stupid.He saved tons of money And should have been rewarded .
ModMech
Platinum Member
Another fine example of "Military Intelligence".... NOT.
Snobdds
Elite Member
There is no time to diagnosis the cause as being the injection pump. When it runs away, the best and only way to stop it is to stop the air somehow.
mcfarmall
Veteran Member
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- Kalamazoo, MI
- Tractor
- Kubota M5660, Farmall C, JD 260 lawn tractor
If I was that guy and it happened again I'd let the engine run away and blow to smithereens. If my CO asked why I let it run away I'd tell him I couldn't afford to lose another jacket.
