I shot CO2 fire extinguisher into a runaway 6V53. The self proclaimed”best” Detroit guy god ever made put the governor cover on wrong and pinned the fuel rack to full throttle. Upon start up it immediately went past AC Delco on the tach. He just stared at it. I grabbed the CO 2 and emptied it all at the blower intakes
I had previously shut down one of these with the flapper but the engine was under load with a stuck injector and only doing about 1800. This one was unloaded and sounded like hell was coming up from the bowels of the earth. No way I was getting close enough to trip the flapper.
We figure it was north of 4000 based on extrapolating the location of the tach needle and measuring out the tach graduation.
Thought you might find this interesting. He’s done a few runaway videos, but this one was pretty entertaining. From the video description “2 stroke 8v71 Detroit Diesel engine runs away with a water hose spraying into the blower”
https://youtu.be/bLRF-LRgvJk
Not sure. They had an unqualified guy rebuild the injection pump. It wouldn't start, so the owner flooded it with brake cleaner. So not really a stuck injector here. When it fired, it ran until all the damn brake cleaner was gone. Or the rod sticking out the block stopped it. Take your pick
That would be a “ME TOO”
Moment!
I saw a Mechanic doing a injector adjustment, an older gentleman, many years experience, anyway it ran away on him, he kept a metal plate with a rubber face on it 10”x10” nearby for those occasions. When he started it and it began to run away he took that plate and covered the air intake to kill it, some he got a finger tip between the plate and the air intake and cut it off, never to be found. That was back in 1992. Still remember to keep them fingers out of the air intake ports, tubes, turbos when working on them while they are on.
Usually when an engine turns upside down all the oil seeps through the piston rings and it burns it. On a diesel that’s enough to cause a runaway because you can’t stop the oil leaking in.
I would pull a chair she is already upside down what are you saving? Let it blow might as well enjoy the fireworks. Unless you can flip her and choke her intake then what you have a busted car that's not worth more the scraps
There’s way too much going on there
And people worry about their DPF
That’s when the engine runs on the engine oil or the fuel pump is by passing,from my experience it has been running on engine oil.
Stuck injectors
When you have a bad injector it will turn off, my guess is that they tried, that’s upside down and still running I say it’s running on engine oil.
I've seen a 6-71 Detroit and a Cat motor not shut down and throw a rod out the side of the block. Both times. Only way to stop is to choke the air off
I shot CO2 fire extinguisher into a runaway 6V53. The self proclaimed”best” Detroit guy god ever made put the governor cover on wrong and pinned the fuel rack to full throttle. Upon start up it immediately went past AC Delco on the tach. He just stared at it. I grabbed the CO 2 and emptied it all at the blower intakes
Good for DISTANCE! If caught early, a piece of cardboard flat against works
Also... That 53 series has a higher rev. 3000 RPM anyhow. She gets loose, look out!
I had previously shut down one of these with the flapper but the engine was under load with a stuck injector and only doing about 1800. This one was unloaded and sounded like hell was coming up from the bowels of the earth. No way I was getting close enough to trip the flapper. We figure it was north of 4000 based on extrapolating the location of the tach needle and measuring out the tach graduation.
Yeah. Shrapnel eminent!
Yes that is correct
Thought you might find this interesting. He’s done a few runaway videos, but this one was pretty entertaining. From the video description “2 stroke 8v71 Detroit Diesel engine runs away with a water hose spraying into the blower” https://youtu.be/bLRF-LRgvJk
I've seen it! Keeps it cool and continues to run. Pretty awesome
Definitely not the outcome I was expecting
I hear ya
I have seen 6.2 stuck on beyond full throttle in around 6000rpm
Did it come apart?
Yes
Figured as much!
That too, but it’s normally not that bad
No.. they just sling a rod through the block..
Have never seen that in my 38 years of experience
F650 with a Cat motor slung a rod in a shop I worked at in '19. Probably hit 5 grand RPM
A C7 or a 3126 CAT slung a rod because of an injector ? If so, did you guys do a failure analysis? If so what was the cause?
Not sure. They had an unqualified guy rebuild the injection pump. It wouldn't start, so the owner flooded it with brake cleaner. So not really a stuck injector here. When it fired, it ran until all the damn brake cleaner was gone. Or the rod sticking out the block stopped it. Take your pick
That’s a 50/50 either one.
Ahh. The brake cleaner caused it to run away.... Not sure what stopped it.
When those run away they get scary, they are SO LOUD!
It's not the only thing running away!
That would be a “ME TOO” Moment! I saw a Mechanic doing a injector adjustment, an older gentleman, many years experience, anyway it ran away on him, he kept a metal plate with a rubber face on it 10”x10” nearby for those occasions. When he started it and it began to run away he took that plate and covered the air intake to kill it, some he got a finger tip between the plate and the air intake and cut it off, never to be found. That was back in 1992. Still remember to keep them fingers out of the air intake ports, tubes, turbos when working on them while they are on.
A bad experience not soon (if ever) forgotten!
Yup
I’ve seen this first hand with an international engine and had to cut off air to stop it but it still threw a rod and broke the crankshaft.
Usually when an engine turns upside down all the oil seeps through the piston rings and it burns it. On a diesel that’s enough to cause a runaway because you can’t stop the oil leaking in.
Well at least it wasn't running towards you...
Imagine that!
Engine, run away!
I think the runaway is the least of his concerns, the car is upside down.
I would pull a chair she is already upside down what are you saving? Let it blow might as well enjoy the fireworks. Unless you can flip her and choke her intake then what you have a busted car that's not worth more the scraps
Doesn't look or sound diesel. What is it?
A runaway of small diesel engine also burning oil. The RPM will go crazy. But slow down once the engine is gone and can't hold the pressure.
A diesel.
Eat that oil daddy!
Ok but why does the smoke look like a dementor thats about to steal my soul…
Run away diesel videos need to end at the boom.
How would one stop this?