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TWGL: Twin screws, bad fuel

BH
Bart Hodge
Wed, Oct 2, 2002 6:12 PM

I have decided to sell my old Morgan OI 41 and switch to power. Friends with a single engine trawler, a Grand Banks, argue that twin engines are a headache and do not really provide the redundancy because most diesels quite due to bad fuel or clogged filters. They say both engines would die at the same time, anyway. It would seem to me that once one quit and there might still be a significant time lag until the second one quit. Maybe time enough to get the problem sorted out. I'm wondering if any of you twin-engine trawler people have had any experience with one engine continuing to run after the other had quit?

-BH


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I have decided to sell my old Morgan OI 41 and switch to power. Friends with a single engine trawler, a Grand Banks, argue that twin engines are a headache and do not really provide the redundancy because most diesels quite due to bad fuel or clogged filters. They say both engines would die at the same time, anyway. It would seem to me that once one quit and there might still be a significant time lag until the second one quit. Maybe time enough to get the problem sorted out. I'm wondering if any of you twin-engine trawler people have had any experience with one engine continuing to run after the other had quit? -BH --------------------------------- Do you Yahoo!? New DSL Internet Access from SBC & Yahoo!
BK
Bob Kunath
Wed, Oct 2, 2002 7:26 PM

There definitely is value in two engines.

I had exactly the experience you are asking about this summer.  We were in
rough water on Lake Michigan in our twin diesel trawler, which is equipped
with two tanks and separate water separating fuel filter systems.  We
usually run on one tank at a time to isolate problems, feeding both filter
systems.  We did get water in one tank, which fouled one of the filters more
than the other.  As a result one engine did shut down.  The other eventually
would have shut down also, but I did have time to switch to the good tank
and stay running, and get to the next port.  Due to the filter failure
(another story) we would have paid for a very expensive tow if we only had
one engine.

Having also "graduated" to a trawler from a Morgan sailboat, I can also
assure you that the handling and docking with two screws will be a huge
delight to you, much easier than with one screw.

Bob Kunath
Sans Souci
Pacific Seacraft 38T

----- Original Message -----
From: "Bart Hodge" hbarthodge@yahoo.com
To: "Trawler World" trawler-world-great-loop@lists.samurai.com
Sent: Wednesday, October 02, 2002 1:12 PM
Subject: TWGL: Twin screws, bad fuel

I have decided to sell my old Morgan OI 41 and switch to power. Friends

with a single engine trawler, a Grand Banks, argue that twin engines are a
headache and do not really provide the redundancy because most diesels quite
due to bad fuel or clogged filters. They say both engines would die at the
same time, anyway. It would seem to me that once one quit and there might
still be a significant time lag until the second one quit. Maybe time enough
to get the problem sorted out. I'm wondering if any of you twin-engine
trawler people have had any experience with one engine continuing to run
after the other had quit?

-BH


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New DSL Internet Access from SBC & Yahoo!


http://lists.samurai.com/mailman/listinfo/trawler-world-great-loop

There definitely is value in two engines. I had exactly the experience you are asking about this summer. We were in rough water on Lake Michigan in our twin diesel trawler, which is equipped with two tanks and separate water separating fuel filter systems. We usually run on one tank at a time to isolate problems, feeding both filter systems. We did get water in one tank, which fouled one of the filters more than the other. As a result one engine did shut down. The other eventually would have shut down also, but I did have time to switch to the good tank and stay running, and get to the next port. Due to the filter failure (another story) we would have paid for a very expensive tow if we only had one engine. Having also "graduated" to a trawler from a Morgan sailboat, I can also assure you that the handling and docking with two screws will be a huge delight to you, much easier than with one screw. Bob Kunath Sans Souci Pacific Seacraft 38T ----- Original Message ----- From: "Bart Hodge" <hbarthodge@yahoo.com> To: "Trawler World" <trawler-world-great-loop@lists.samurai.com> Sent: Wednesday, October 02, 2002 1:12 PM Subject: TWGL: Twin screws, bad fuel > I have decided to sell my old Morgan OI 41 and switch to power. Friends with a single engine trawler, a Grand Banks, argue that twin engines are a headache and do not really provide the redundancy because most diesels quite due to bad fuel or clogged filters. They say both engines would die at the same time, anyway. It would seem to me that once one quit and there might still be a significant time lag until the second one quit. Maybe time enough to get the problem sorted out. I'm wondering if any of you twin-engine trawler people have had any experience with one engine continuing to run after the other had quit? > > -BH > > > > --------------------------------- > Do you Yahoo!? > New DSL Internet Access from SBC & Yahoo! > _______________________________________________ > http://lists.samurai.com/mailman/listinfo/trawler-world-great-loop
BM
Bob McLeran
Wed, Oct 2, 2002 7:34 PM

You bet! One of my engines kept losing rpms frequently and would stay down
low enough that it was not "pushing" it's own weight; I'd end up shutting
it off for an hour or so while running on the other engine. Had trouble
locating the problem. After several months of this, and endless searching,
I finally found a very slight air leak in the fuel line - not enough to
cause a drip on the outside of the line, but enough to cause a problem for
the engine.

Never had a mechanical breakdown, but it could happen, I suppose - knock on
teak!

Bad fuel is an issue that can be dealt with easily. Either cruise enough
that you use up your fuel frequently (my trawler holds 150 gallons total in
two tanks), or install a fuel polishing system. Either way, you virtually
eliminate bad fuel as a cause for engine shutdown (unless you buy old
diesel from an out-of-the-way marina).

My next trawler will have a single engine, and perhaps, maybe, a
bow-thruster (but that is another issue).

At 02:12 PM 10/02/2002, you wrote:

I have decided to sell my old Morgan OI 41 and switch to power. Friends
with a single engine trawler, a Grand Banks, argue that twin engines are a
headache and do not really provide the redundancy because most diesels
quite due to bad fuel or clogged filters. They say both engines would die
at the same time, anyway. It would seem to me that once one quit and there
might still be a significant time lag until the second one quit. Maybe
time enough to get the problem sorted out. I'm wondering if any of you
twin-engine trawler people have had any experience with one engine
continuing to run after the other had quit?

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Bob McLeran      Email: mailto:rmcleran@ix.netcom.com
M/V Sanderling  Currently at Washburn's Boat Yard, Solomons, MD,
Hampton 35 Trawler                                for annual maintenance.

You bet! One of my engines kept losing rpms frequently and would stay down low enough that it was not "pushing" it's own weight; I'd end up shutting it off for an hour or so while running on the other engine. Had trouble locating the problem. After several months of this, and endless searching, I finally found a very slight air leak in the fuel line - not enough to cause a drip on the outside of the line, but enough to cause a problem for the engine. Never had a mechanical breakdown, but it could happen, I suppose - knock on teak! Bad fuel is an issue that can be dealt with easily. Either cruise enough that you use up your fuel frequently (my trawler holds 150 gallons total in two tanks), or install a fuel polishing system. Either way, you virtually eliminate bad fuel as a cause for engine shutdown (unless you buy old diesel from an out-of-the-way marina). My next trawler will have a single engine, and perhaps, maybe, a bow-thruster (but that is another issue). At 02:12 PM 10/02/2002, you wrote: >I have decided to sell my old Morgan OI 41 and switch to power. Friends >with a single engine trawler, a Grand Banks, argue that twin engines are a >headache and do not really provide the redundancy because most diesels >quite due to bad fuel or clogged filters. They say both engines would die >at the same time, anyway. It would seem to me that once one quit and there >might still be a significant time lag until the second one quit. Maybe >time enough to get the problem sorted out. I'm wondering if any of you >twin-engine trawler people have had any experience with one engine >continuing to run after the other had quit? <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> Bob McLeran Email: mailto:rmcleran@ix.netcom.com M/V Sanderling Currently at Washburn's Boat Yard, Solomons, MD, Hampton 35 Trawler for annual maintenance.