[diesel_mercedes] Re: Henry's Crashing Crane

WOW ! . I once had a mechanic who did a simple job on an engine that
required pulling it then flipping it on it's side , I stupidly
assumed he knew enough to slowly rotate the engine by hand a few
times after re-installation & before firing it up , he didn't and so
it tried to light off but only fired on one hole then hydro-locked on
the cylinder that was full of oil and bent a conecting rod....

We used to keep slabs of plywood here & there in the shop for
stopping runaways on our Big Rigs but no more , I guess the NOOBS
just expect to let 'em run and grenade .

-Nate
Henry wrote:
>
> yeah,
> such strange things happen right near teenagers, without their
involvement
> at all. .............
>
> Interestingly:
> The crane survived pretty much intact. some minor bending of sheet
metal, on
> handle broken, that's it, except for an interesting occurrence.
Something
> I'm sure an experienced vehicle rolling person would have thought
of:
> Since the truck sat upside down for a day, it seems oil leaked into
the
> cylinders........
> So, after I checked the fluids and re-installed the batteries, I
cranked it
> over to see if it'd start.
> BOY HOWDY!!!!
> It "ran away" for about 30 seconds..........super high rpm, pulling
the
> "kill handle" had no effect. But, once the oil in the cylinders ran
out, it
> shut off. Seemingly, no worse for wear, although, it did bath me
and
> everything for 50 feet in black soot and oil......and, probably
cleaned any
> carbon out of the system.
>
> That is how I know shutting off the fuel is not the best way to
stop a
> run-away diesel. Stopping the air is the only sure fire way to stop
it.....
>
> Henry

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