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Old 10 March 2007, 08:07   #1
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Country: UK - Wales
Town: swansea
Boat name: Too Blue
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Fuel tank problem?

I may have a bit of a problem with my main tank - the fuel gauge used to be pretty accurate but after a few tight turns it is now showing 1/4 of a tank of fuel even though there wasn't that much in there. Not long after the engine cut out so I had to run on the rear tank - I know there was still a reasonable amount of fuel in there. This also happened on my LR Defender - I would run out of petrol with 1/4 of a tank still showing - a lot of hard offroading seemed to cure the problem eventually.

What sort of pickups etc are used in marine fuel tanks? On mine there is a round plate bolted into the top of the tank with the shutoff valves etc coming out of it. Don't want to stick more fuel into it until I know what's going on.
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Old 10 March 2007, 08:54   #2
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Country: Belgium
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Codders, does'nt need much to ruin the float. Electronics I doubt it. Take it out to see if its stuck.

I would have thought a man of your calibre would have had at least a decent flowmeter?

JONATHAN
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Old 10 March 2007, 08:59   #3
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Quote:
Originally Posted by eupa View Post
Codders, does'nt need much to ruin the float. Electronics I doubt it. Take it out to see if its stuck.

I would have thought a man of your calibre would have had at least a decent flowmeter?

JONATHAN
Yup - but it's a Navman so the display has packed up!!!

It's not the fuel guage I am worried about - just wondering if the pickup has got snagged or something - how do these fuel tanks work? Is there some sort of pipe going to the bottom of the tank or what?
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Old 10 March 2007, 10:15   #4
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Country: Belgium
Town: NIVELLES BELGIUM
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Engine: Ob 2*250/2t yams hpd
MMSI: 235030702
Join Date: Aug 2004
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Codders, does'nt need much to ruin the float. Electronics I doubt it. Take it out to see if its stuck.

I would have thought a man of your calibre would have had at least a decent flowmeter?

JONATHAN
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Old 10 March 2007, 17:35   #5
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Web search for fuel level sender should get you enough images to see how they work.

There are some pretty cool solid state capacitive senders out, but most are a float on an arm driving a potentiometer.

jky
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