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Fuel polishing system report
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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 |
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 |
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 |
Fuel polishing system report
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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 |
Fuel polishing system report
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Fuel polishing system report
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 |
Fuel polishing system report
On Wed, 12 Nov 2008 23:58:01 -0500, Wayne.B
wrote: On Wed, 12 Nov 2008 15:14:09 -0500, wrote: I don't seem to have any scheduling problems, and my engine is very good. If I'm not back on Monday, I'll be back on Tuesday... or Thursday. And it sounds as if I use a lot less gasoline than you used diesel fuel. If you always have time to wait for the wind to come up, you don't need any engine at all. How do you charge your batteries when you spend weeks on the boat? Other than instruments, VHF, and a DVD movie here and there on a little player, I don't really use any power, so a pretty small solar panel, coupled with limited amounts of motor sailing usually leaves me with a surplus. When I run the outboard, I often have to turn on some lights in the cabin to avoid overcharging. It has never been a problem. If I wanted all the comforst of home on my boat... I'd stay home. I obviously didn't say or even imply that I never have use for an engine Wayne. If you need to invent arguments, then I guess we have our answer. I agree that a diesel has some advantages. The truth is that both diesel inboards and gasoline outboards have both advantages and disadvantages. Neither is perfect, and neither can be said to be "better". |
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