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Some diesel engines can operate with 50+% exhaust gas recirculation, note there is a lag time as when first EGR kicks in, there is more oxygen in the exhaust gas. Progressively, the oxygen content decreases but since there is always fresh air (measured by mass) intake, the engine won't die. It...

During a run-away as the original poster had happen, engine speed would be very high. The issue of fueling from lube oil would require choking or extinguishing with carbon dioxide.

That is why I said a 5 pound extinguisher would be needed. If there is an intake butterfly valve, then far less would be needed as manifold pressure would be reduced. My TDI has such a device to prevent shut off shudder, works well to kill the engine too when I have had to override the...

480 cubic inches, 240 per revolution as it is a 4 stroke. 3600 rpm so 86400 cubic inches per minute, that is 500 cubic feet. One pound of carbon dioxide is about 8 cubic feet so a one pounder needs to be discharged at 8/500 minute, roughly one second. sounds like a five pounder is necessary.

What is the smallest CO2 cylinder you can get? Not a 12 gram, that would not be enough. 5 pounds would be plenty.

Ouch. Safety wire here is a must. Fuel inside, engine oil outside.

The lever shaft assembly should drop in and fit flush as long as the pawl is in the proper elevation as the slot on the collar. I can feel the added weight of the collar when actuating the lever with my fingers.

Sounds like the pawl on the lever shaft was not engaged in the slot on the control collar. This prevented free floating of the control collar so the governor could not control the engine, leading to full fuel when the lever moved the collar. I find a small mirror like a dental type is most...

Yes, oil and air from the center bearing section of the turbo if that seal is compromised.