Interesting parallel
This is from a a Forum discussing the recent Carnival Cruise ship engine malfunction off SoCalif:
"If memory serves, the two stroke cycle "Jimmy" (GMC) diesel, which has a blower for exhaust scavenging, also has oil pressure to the blower shaft bearings, and if an oil seal adjacent to one of those blower bearings goes out, the engine will run just fine on that lube oil, ever increasing in rpm (read run-away diesel) until the engine finally blows up. They say that this is an especially terrifying situation in the engine room in a ship. Only thing you could do is somehow, quickly and completely choke off the intake air to the run-away engine before it blows up.."
GB