Detroit 4-71 run away

[Paul Precht]

Photo's and captions on the tree issue. http://classracer.com/classforum/album.php?albumid=518

[art leong]

I had a 6-71 run away on one of my fishing boats. We had a genius help us with the rebuild and he put the rack in backwards.
Stuffed rags in the intake and it slow but couldnt stop it. Had to hit it with a fire extinguisher. To finally stop it.

[Paul Precht]

You gotta love that sound Art, I had an 8-92 in my old Ford CL9000 tractor trailer when I was an Owner Op, what a beast to work on, I once ran it out of fuel, that's a long story for another day.

[Al Loyrat]

When I was young this old diesel mechanic showed me this 2" thick board with a gate handle screwed on top and asked me if I knew what its for. He said its for a runaway diesel. .Always had it handy!

[Lew Silverman]

Most of the in-line 71 series diesels had a flap inside the airbox that was supposed to cover the blower inlet and shut the air off and kill the motor. They very rarely worked! I've seen GMC's with the liners so worn that they would run on the lube oil they sucked past the rings! Not a lot of fun!

Lew

[art leong]

Originally Posted by Lew Silverman

Most of the in-line 71 series diesels had a flap inside the airbox that was supposed to cover the blower inlet and shut the air off and kill the motor. They very rarely worked! I've seen GMC's with the liners so worn that they would run on the lube oil they sucked past the rings! Not a lot of fun!

Lew

I first hit the flap, slowed it down some, then tried stuff rags in the airbox, not much help.
Finally used the CO2 . That worked.

[goinbroke2]

Saw/heard a couple of 6v53's run away. The screech sends tingles down your spine! One, the guy threw his parka into the airhorn and it ate it in about 3 seconds!( it has a fine screen between it and the blower so I don't know how, but it did) Pulled the fuel quick disconnects and it ran on the engine oil with a clipboard sucked tight on the airhorn for a minute or so then died. Another ran away and the cpl working on it was running around not sure what to do and it ran screeching for a good 5 minutes while more and more people came to see what the racket was. Finally a snuff board was found and killed it but the motor was rattling/knocking bad and had to be replaced.
These were in APC's when I was with the engineers in Germany.
Pulled into service battalion in Petawawa one day just as they were cleaning up from a run away 8v71 that was in a M-109. There were parts scattered all over the shop and oil dripping from the rafters! Don't remember the details, just the mess.

It kills me to see or hear something being destroyed though, that's why I won't even watch a video of "engine blows on dyno" or "wide open contest" or whatever. If it's an accident, then hopefully the guy who messed up learned his lesson. But morons who blow things up for the fun of carnage and destruction deserve a tiny corner of hell in my opinion. And no, I don't go to demolition derby's, as a kid I saw too many "good" cars destroyed for no reason. I even tried to buy a 73 mustang as-is before a demo derby started, the asshole was some braindead non automotive type guy who wanted to smash something. Didn't matter if it was a mustang or a pinto or a ferrari, he just wanted to smash something and wouldn't sell. I left because i couldn't watch and have never been to one since.

Can you tell I'm a little touchy about it? LOL