Excepting very, very few circumstances, a runaway situation is pretty much a death sentence for a diesel engine. Once the oil starts lighting up in the cylinders it takes air starvation to shut the engine down, which isn’t easy to do when the motor is in a large truck on a mobile dyno. This first-gen Cummins Dodge is owned by “JAyers”, who is the owner of this YouTube video showing what happened when a fuel screw was turned just a little bit too far about five years ago, allowing the motor to ignore input and go straight to it’s own program. At one point the engine sounds like it’s in the neighborhood of 5,000 RPM, territory a first-gen Cummins does not normally like. At that point, the rotor in the injection pump failed and shut the engine down, resulting in one very sickening “clank”. How sickening? Lohnes was nearby when I was watching the video, and without knowing what was going on, cringed the second he heard the noise and had to see for himself. Click “Play” and see if you don’t cringe too.
“What horse was that?” HAHAHAHA It don’t matter now does it?
We’ve seen run ways here before that required rags and plywood to shut them down ,how did they stop this one?
Ok I read the caption, was the “clunk” the thing hydraulic locking?
As they say in the south “It done blowed up”.