Originally Posted by LarryBible

The STOP lever is useful in the event that a loss of vacuum prevents normal shut off. It will NOT, however, stop an engine that has run away due to injection pump maladies. I have tragically been there, done that. End of story.

When starting a diesel after injection pump work, hold a 17MM wrench in one hand when the engine is started. If it runs away, crack the lines at the injectors one at a time until engine dies.

STOP RIGHT THERE!!!!!!!! Don't start talking about cutting the lines, pulling the fuel line, loosening the fuel filter or any of that other stuff!!!!!! Have a 17MM wrench in your hand and loosen the injector lines at the injectors. AGAIN, BEEN THERE.......... DONE THAT!!!!!!!!!!!!!!


To make sure that definitions are made, a run away engine is NOT one that fails to shut off when the key is put in the off position and continues to idle. That is just an idling engine that has a problem getting stopped. A RUN AWAY engine is one that is setting there getting MAXIMUM FUEL RUNNING AT MAXIMUM NO LOAD SPEED! A RUN AWAY engine must be stopped and immediately. The best way to do this is with a 17MM wrench in hand, loosening the injector lines at the injectors one at a time until the engine is dead.


Did I mention that you should have a 17MM wrench handy when starting an MB diesel after injection pump work?????