electronic ones.GT182 wrote: ↑11 Feb 2021 16:15I had a runaway Detroit engine in the carhauler for Anchor Mtr Frt I was driving back in the 80s. Governor failure. The shaft inside broke. Sure made on smoky mess in the TSA garage.... solid black smoke from a foot off the floor to the ceiling in the whole garage of 4 bays. The tach actually went around 2 and a half times. The only way we got it shut down was brakes on and smother the air intake. I still have that piece of shaft to this day in my tool box.
Engines these days must surely still have governors on them.![]()
They don't use mechanical governors anymore. So normally a runaway engine caused by an electronic governor failure should be easily fixed simply by removing the ECU fuse AFAIK (no ECU to drive the injectors, no injection)
Only other way to run away is it's for some reason you have oil entering the combustion chamber (usually Turbo failure)