Nothing is more accurate than a boat's gas gauge...
I mean it, you are better off with nothing.
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| fuel gauge https://www.smwebhead.com/phpBB3/viewtopic.php?f=6&t=9676 |
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| Author: | joevemda [ Tue Jun 26, 2012 6:25 pm ] |
| Post subject: | fuel gauge |
hi, i am new in this forum, can anyone tells me why my fuel gauges are off by about 1/4 when boat engines are running, when there is just one the gauge seems good. |
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| Author: | rpengr [ Tue Aug 28, 2012 4:05 pm ] |
| Post subject: | Re: fuel gauge |
I have never had this happen, but: I would check the system voltage with each engine running (one at a time). With an engine charging, voltage should be very close to 13.9 Then with both engines running, the system voltage should still be about 13.9 A bad voltage regulator could allow a higher voltage, and maybe that could throw off the reading? Also check all ground connections, including the ground going to the fuel tank sender. |
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| Author: | Capt. Hoss [ Wed Aug 29, 2012 9:32 am ] |
| Post subject: | Re: fuel gauge |
I know on my Horizon it is always off by 1/4 if I am underway. Could be just where the gauge sender is. |
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| Author: | ric [ Wed Aug 29, 2012 10:33 am ] |
| Post subject: | Re: fuel gauge |
When a boat is not moving it's flat. When you're underway the boat has some bow rise. Gravity moves the fuel to the back of the fuel tank where the fuel level sender is, causing it to read higher then what it really is. Section I page 3 http://www.fourwinns.com/content/assets ... Manual.pdf |
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| Author: | gregs [ Thu Aug 30, 2012 9:55 am ] |
| Post subject: | Re: fuel gauge |
Nothing is more accurate than a boat's gas gauge... I mean it, you are better off with nothing.
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| Author: | rpengr [ Thu Aug 30, 2012 10:11 am ] |
| Post subject: | Re: fuel gauge |
joevemda wrote: hi, i am new in this forum, can anyone tells me why my fuel gauges are off by about 1/4 when boat engines are running, when there is just one the gauge seems good. Would like to hear again from the OP. I think he is saying that that the gage is off when "both" engines are running, and when there is just one [engine running] the gauge seems good. I assumed in both cases that the boat was not moving. We need to hear more from the OP or this thread is useless. |
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| Author: | ric [ Thu Aug 30, 2012 10:19 am ] |
| Post subject: | Re: fuel gauge |
Think of the gas gauge more like a suggestion. Either your full or it's low and time to fill up. Unless you fly an airplane, your gas gauge is inaccurate in anything you own. The best way to track gas is to do it yourself. Know what you put in and know what the boat burns. My work van (2005 dodge) when the gas needle is exactly on the E line for empty, there's 5 gallons left in the tank. The gas light comes on gauge wise 1/4 tank, actual 1/2 tank. In my Lexus when the gas light comes on it's roughly 5-6ish gallons, or 100 miles. |
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