Late 80's I had a cummins run away. Same thing as most, turbo.
About 5 years ago, I got a call from an operator that her machine wouldn't shut off. Went out and it wasn't running away but making a god awful noise and after we starved it at the intake, we dragged it back to the shop. Half of the impellers were gone in the turbo. We got lucky on that one. It was a deutz 6 cylinder.
