We've seen, again, from one of the contributors to this board...and I don't mean to single anyone out...a problem which involved an item of equipment which Detroit Diesel had suggested to be defeated or removed some years ago. Perhaps it was the 'pipe dream' of some young Engineer at DD to solve the possibility and/or rumor that Detroit's run away.It was found, and the Service Bulletins will bear this out, that using the Emergency Shutdown Damper in the top of the air intake mightshut down a runaway engine but the chances of using it might invert the blower seals and, in effect, give the runaway an alternate source of fuel to burn and it would end up scrap anyway.I've been near a runaway Detroit many years ago (prior to the damper) and only the application of Co2, in generous amounts, stopped it from disintegrating.Today, while at the shop where my 8V71 was removed, I asked the Service Manager to remove the Emergency Solenoid and physically remove the damper from the top of the blower intake. I'd rather live with the chance that my engine would "runaway" than have the problems endured by our friend on this board.No doubt there will be some who will take me to task for my decision but consider this: I'm following Detroit Diesel recommendations in regard to this accessory.....and it is MY engine.Having lived with these fine engines for well over 40 years and seeing only 1 runaway (the fault of the mechanic who didn't put the cotter pin in the rack before starting the engine) I feel confident that I won't experience the same problem which our friend endured. NCbob
I like the idea of adding an emergency fuel shut off vale also...Good Idea...Steve
Then why not make it a solenoid valve controlled by the run switch? You would then have control fron the driver's seat as well as the maintenance switch at the engine.Len