Diesel Runaway Engine

Busskipper wrote:

carringb wrote:

Busskipper wrote:

Rollnhome wrote:
Wasn't exactly sure where to post this, but this is what happens and what a runaway diesel is. I'm sure you'll get the idea. Runaway Engine

Eliminate the air - it will stop.

Or eliminate the fuel - it will stop.

Help?

Yes and no!

Runaways are usually caused by a busted turbo oil seal, and the oil becomes the fuel. That's why those events are so smokey. Cutting the fuel does nothing, and neither does cutting power. Cutting air is the only way to stop it, but there's no way I'd want to put myself next to an engine that could spit a piston and any moment. Plus, the damage from overspeed is most likely already done.

That might be why cutting the air is the first choice.

Only had it happen twice on a detroit - once just the flapper and once we cut the fuel.

But you are correct - it would be my guess that the video is of an engine running on the oil in the engine - and likely it is already just scrap.

But very rare,