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Default Fuel polishing system report

Bruce in alaska wrote:

I've run Diesel from 55USG Drums filled during WWII, with no problem,
whatsoever. This stuff is over 50 years old, and makes power in my
Gensets, just spiffy.....


Interesting. Were those drums sealed all these years? I wonder if WWII
diesel (different stuff than we have today) sealed into drums with the
intention that it would be stored for a long time would give the same
results as modern diesel that's been sitting in 3/4 to 1/2 full drums in the
sun for a few weeks.

My original comment about drums was really just shorthand for the reports
I've received about poor fuel quality up in Newfoundland where the fishing
restrictions have slowed sales to the point that stuff which is a long way
down the supply chain anyway gets pretty funky. There were a few problems
here in Maine this summer simply because the long hoses at some marinas
would grow stuff when no one came along for days to buy due to the high
prices earlier in the summer.

--
Roger Long


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Default Fuel polishing system report

And another thing, if you keep your tanks full, you miss out on the washing
action of boat rolling fuel around against the sides of tanks that are less
than half full which helps keep down the crud growing there.

All in all, from the standpoint of fuel quality, there is probably more
downside from keeping tanks full than using most of the stuff up and then
refilling.

--
Roger Long



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Default Fuel polishing system report


"Capt John" wrote in message
...
snipped some

: In order for "the gumk" to grow in your fuel tank their must be water
: present, no water, no gunk. This is the main reason it is always
: reccomended that you keep your tank full. A full tank will not draw
: moist air into the tank through the vent as the fuel expands and
: contracts when it warms and cools.If you've got water in the fuel,
: your going to have some kind of growth unless you treat your fuel with
: an aditive like Biobor. Filtering it, or as some prefer to call it,
: polishing it, will remove the growth, but it may not remove the water,
: depending on how long your fuel pickup is. Your best bet is to treat
: your fuel on a regular basis, keep the tanks full at all times, and
: change filters at the first sign of trouble. Polishing is only going
: to make the problem go away for some period of time, but it will be
: back.
snip


Wrong!


http://64.233.183.104/search?q=cache:_vvnJuQXrjUJ:www.dieselpage.com/art1110fd

"Once water has been removed from the fuel system, bacteria can still grow
in the fuel. This bacteria is introduced by the water but can use the diesel
fuel as a medium to feed and multiply."

Wilbur Hubbard


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Default Fuel polishing system report

On Nov 12, 12:18*pm, Capt John wrote:

snip


Another point, those 2 micron filters on your Racor, check with your
engine manufacturer, I've never heard of one reccomending more than a
30 micron filter as the promary. Using more restrictive filters can
cause problems with your supply pump, or, even worse, cause the engine
to run lean. That will cause the engine to run hot and, over the long
run, cause all kinds of other problems.- Hide quoted text -



As I recall, if you check with Racor I think you'll find the 2, 10 and
30 micron filters have the same flow rating. And for the most part we
are talking low power, low flow rate engines here. So it's really a
non-issue.

FWIW I've been running 2 micron Racors on Lehman 120s and 135s, as
well as other brands, for decades with no problems of any kind.


Capt. Bill

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Yves Gelinas of Cape Horn fame also sailed around without an engine.

Much depends on your objectives. If you just want to go around, stopping at
the minimum number of ports for resupply, the space and weight of an engine
may well be better devoted to other things. It can make landfalls
nervewracking though with sleep deprivation due to higher traffic, light
winds, currents, and unfamiliar waters all piling up into a situation that
could be pretty dangerous. It nearly happened to Yves approaching Ireland.

A major objective of my cruising is to explore and photograph the shores
closely and extensively when I get there. This is often best and most
enjoyably done under power. I get plenty of sailing in on my cruises. This
is also the times, the wind often being light or non existant, when engine
failure could be most threatening to the boat. I plan to be doing a lot of
this close up to the cliffs in Newfoundland where it's too deep to anchor if
the engine quits.

--
Roger Long


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