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From: "George Irvine" <girvine@be*.ne*>
To: <mat.voss@t-*.de*>
Cc: <techdiver@aquanaut.com>
Subject: RE: Nova Tech Dive Report 7/21/02 & Lessons Learned
Date: Sat, 27 Jul 2002 20:49:47 -0400
No, the other engine was ok. I shut off the air and fuel to it and spun it,
as the starter motor will not be powerful enough to bend the rods - that
only happens if the engine fires up. If it had stuck, I would have removed
the injectors, spun it , put them back and then fired it up, which is what I
should have done when I saw all the water in boat.

I did not have the spare parts on me. That was back in the pre cell phone
days, so I called Key Power on the sideband and had them fly the parts in
with a mechanic. I took the motor apart and got it ready, and then helped
him put it back together. I did have the tools and the GM manual.


-----Original Message-----
From: Matthias Voss [mailto:mat.voss@t-*.de*]
Sent: Saturday, July 27, 2002 2:34 PM
To: girvine@be*.ne*
Cc: techdiver@aquanaut.com
Subject: Re: Nova Tech Dive Report 7/21/02 & Lessons Learned


George,
I just smile, imagining you as a gypsy with a crystal ball ...
all this has happened...

George Irvine schrieb:
>
> Mattie - some of these broke dick nickel rocket dive morons don't have
> adequate risers in their exhaust system, so the water goes back up into
the
> engine when they turn the motor off in a rolling sea.

Ah, what we german-tongued would call a swan's neck bend, more familiar
to divers as being found at some other, as well as important, loo-cation
on a boat.

> Water will not
> compress, so when they turn the engine over , it bends the piston rods.

Pretty clear. Once we had been shifting sand sacks when a sudden storm
brewn flood occurred, to protect a narrow gap in the beaches dam, but
the parking lot got flooded waist deep. Next morning the fire brigade
appeared, full of helful mind in the big muddy, not so full of skills...
the hauled to start an unwilling car until the engine's bitter death,
which produced a costly sound, as well as some snide remarks from
standers by .



 Then
> we have the dumb assholes who do not have adequate or decent batteries and
> can not restart their boats with a hot engine.

...Insert not fully disengaging clutch.. the local hero had to run
circles around another dive boat, until they were finished, so we could
get alongside and be towed towards harbour. Arrived there , the old yard
mate, with a grim smile, put it right with a flick of his arm....

> Then we have the assholes who
> do not replace the starter motors when they wear out, so those expand with
> heat and will not spin properly. All in all, that is why the dumbfucks
would
> rather kill a diver with the boat than turn off the engine.

;-) This captain got into the engine and fixed the contacts. Had to
repeat that, until he finally believed it was the bearing/ bushings
causing collateral damage to the coal contacts.





> A "riser" is what it sounds like - the exhaust has a "rise" in it and
> baffles. Some have more sophisticated bypass mechanisms. I locked one up
in
> a 12 foot see when a thru hull cut loose and flooded the boat while I had
> the engines turned off snapper fishing. We never should have been out
there
> that day.


12 foot sea... you can say that aloud...


> When I noticed the flood, I cranked the engine to activate pumps I
> had connected to the main engines, and the stb one locked up on me,
throwing
> the couch and the people sitting on it into the air.

Luck the crankshaft didn't get broke, or blasted its bearing houses.

>
> I had to replace the rods myself, and it took all night. It was an old GM
> 871 - TI . That taught me about risers.

So you made it to the port with one engine ? Or did you have the
rods/bearings handy while at sea ? An unpleasant idea this..

Matthias

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