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Discussion Starter #1
Is there an ez way to try and fix my gas Gauge ? I know it could be a nuber of things but what should I try first?

Also, Should the Gauge show how much gas if the motor isnt running?



[me=Jay_In_Parker] [/me]
 

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Jay On all my boats you have the key on motor dose not need to be running. I would start by checking fuses and connections. Other than that ???
 

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Discussion Starter #3
So I should be able to turn the key like on a car and it should show w/o the motor on? Ok, Ill check the fuses.


[me=Jay_In_Parker] [/me]
 

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Jay I have 4 boats and all the gas gauges read with just the key on engine off. What is the tank made of.
 

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The sending unit in the tank is a variable resistor that allows various amounts of current to flow through the guage. this heats up an element in the guage and causes the needle to move various amounts. If you turn the key on and go to the sending unit connection at the tank you should have battery voltage on the wire coming from the guage. If you remove that wire and the guage reads empty and then ground that wire and the guage reads full, the most likely cause is that the sending unit in the tank is bad (assuming the tank is grounded correctly). If you do not have voltage at the tank with the key on  (and the guage doesn't respond when the wire is grounded) then you have an issue with a power supply (fuse, connection, etc.) Guages are simple circuits but can seem complex if you're not comfortable with basic electricity. If you have a friend who understands 12V DC have them help.

Keep in mind that most problems are actually caused by simple things...fuses, connections (either someone did some work and forgot to hook something back up or bumped something) and the like are the most likely culprits. start simple.
 

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farmer ted said:
The sending unit in the tank is a variable resistor that allows various amounts of current to flow through the guage. this heats up an element in the guage and causes the needle to move various amounts. If you turn the key on and go to the sending unit connection at the tank you should have battery voltage on the wire coming from the guage. If you remove that wire and the guage reads empty and then ground that wire and the guage reads full, the most likely cause is that the sending unit in the tank is bad (assuming the tank is grounded correctly). If you do not have voltage at the tank with the key on  (and the guage doesn't respond when the wire is grounded) then you have an issue with a power supply (fuse, connection, etc.) Guages are simple circuits but can seem complex if you're not comfortable with basic electricity. If you have a friend who understands 12V DC have them help.

Keep in mind that most problems are actually caused by simple things...fuses, connections (either someone did some work and forgot to hook something back up or bumped something) and the like are the most likely culprits. start simple.
yeah what he said, couldn't have said it better my self
 

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Discussion Starter #12
LoL, When I got the boat I wasnt sure if it was full or not. I tried putting gas in it and it would only take $1.00. When I took it out it went up to quarter of a tank but than went back down and I dont think it moved again?


[me=Jay_In_Parker] [/me]
 

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Gas gauges are notoriously inaccurate. It all depends on how the boat is sitting.. I like to go long distances, so now I now have a fuel flow meter,

and,,,, I now know my boat has 35 or so gallons left when its on 1/8th when sitting level in the water, and/or 1/2 tank on plane... all this with a 75 gallon tank.

Did I mention I'm coloring my hair? Brunette...
 

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TAL0362 said:
Did I mention I'm coloring my hair? Brunette...
That is so 1950's...
One of my granddaughters has hers in blue and fluorescent green with a bleached white forelock...

She looks like a jar of powerbait...
 
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