On Sun, 21 Sep 2003 01:18:34 -0400, Dave
wrote:

A side note to this;
I was told years ago of diesel backhoes that, when accidently hitting
natural gas pipelines...would ramp up RPMs from the "free" fuel mix,
till rods, etc busted. Or worse.

~Dave

I saw this happen once in the oil fields but on a slightly larger
scale. The rigs hoist was powered by a 398 Cat..just about the size of
a small condo...and a gas kick managed to make it past the drilling
mud and the dumb**** that was supposed to shut the pipe rams was drunk
in his car. AKA Blowout. Not a big one..but one big enough...

That big old ******* started winding up and up and up and up...and
from a distance as I was running away..I could hear it blow, then
catch the entire rig location on fire. It was a couple weeks before we
went back to work. They had to pull nearly an entire new rig back on
the well.

I wish Id been able to survey the damage to the motor and the rig..but
they hauled it off to Texas to rebuild everything IIRC.

Chuckle..Cactus Drilling, El Dorado Arkansas was the company, and they
were drilling in Michigan. Lots of fun working derrick at -40, and
then have the wind start blowing the snow sideways past the working
board on that Triple.

Gunner, having a nostalgia moment


Greg O wrote:

"Engineman1" wrote in message
...
A friend just bought a yacth with twin Hino diesels. They are started by a
key
switch but when they you want to shut them off you have to press a stop
button
until the engines quit, then turn the keys off. I don't have much
experience
with diesels but years ago when I had a job repairing forklifts I ran into
a
similar situation.
This seems to me to be unecesaralary complicated. After all, most diesel
powered cars turn on and off with a key switch. I have asked many people
this
question but have gotten answers that didn,t seem plausible. So now I'm
asking
the experts.
Thoughts?
Engineman1

Some diesels have a normally open fuel solenoid in the injection pump. You
need to apply power to the solenoids to stop the flow of fuel. The shut down
may be a solenoid the pushed the injection rack to a position that causes
the pump to stop delivering fuel. Either way you need a few seconds of power
applied to the kill wire. Simplest, least problematic it a plain old
normally open push button. One nice feature of a shut down like this is the
engine does not need any electrical power to run, once it is running it will
go 'till it runs out of fuel or is intentionally shut down. It increases the
dependability somewhat by not needing power to run
Greg


"Anyone who cannot cope with firearms is not fully human. At best he
is a tolerable subhuman who has learned to wear shoes, bathe and not
make messes in the house."
With appologies to RAH..