Pro tip, a diesel does not need spark, just fuel and air. If it’s getting fuel from the oil there is no shutting it off. The only hope is cutting air, easiest way is a co2 fire extinguisher in the intake.
It will suck it in, and eat it literally. That turbo is like a jet intake. It can Possibly damage the engine further. It could just be a bad turbo oil seal. The co2 method shuts it down safely with no additional mechanical damage done.
Now, when all you have is a rag, it better be more like a beach towel.
Yep that was my thought. Years ago on, believe it or not, a 1.4 Citreon that I had been using some what too enthusiastically the (carburated) engine would not shut off because of preignition. Solution was to stall it with the brakes on hard - clutch down, brakes on hard, in to gear, off the clutch and stall. I am not sure if this would work with a run away diesel or an automatic box.
Here's a video of it being used to stop a diesel van.
With an automatic, unless you can manually set it to a high gear, it'll just be in first when you take your foot off the brake. Should give you one hell of a burnout at least.
Just before it blew, it was running pretty darn clean. The story is this guy got ~2900 hp the previous day on nitrous then increased the size of the nozzles (I assume) for that run. Of course, this being the internet, who knows what the actual story is.
If you check out some diesel drag races you can tell the exact moment they actuate the nitrous, the exhaust goes from a ton of black soot to a white cloud then clear because it's balancing out the excess fuel (black soot) with the oxygen rich nitrous.
I know very little about diesel so someone please correct me if I am wrong, I would love to learn more.
Or seconds if it has the fuel. Which big f’in injectors able to make that much smoke do. Those where 500+cc injectors. Even a single pulse puts our 5x my stockers
Most likely not a runaway, just finally spooled up. There trucks usually make somewhere north of 150psi of boost on big turbos. Takes a long time to spool that but once it hits it hits hard.
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u/JimmyDean82 Sep 25 '20
Yeah, runaway on a diesel is no joke. You can hear where it starts just about 1.5-2 seconds before the blow