fuel level sending unit
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- guglielmo6160
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fuel level sending unit
F31 fuel tank senders, anyone have any line on getting one, I guess Im having a problem with my sender in the aft tank, shows 1/4 to 1/3 and guess what,,,, empty, is there a way to cal? I dont think so,
any info would be great
any info would be great
1983 10 meter express
It depends on the sending unit. If you look at sending units on line they are for different tank depths. You set the depth on the float gauge based on the bottom the the tank, if for some reason the float is not dropping to the bottom the the tank it may be installed where it is resting against the side. The reheostat has the least resistance at full and is at the most at empty usually a faulty sender will break the wire and you will get an empty reading when the level drops below the break in the wire.
Dan Faith
Toy Box
Trojan F32
Trojan 30' sport fisherman
Sea Ray 17'
Beach Craft Bonanza N35
Corvette
Toy Box
Trojan F32
Trojan 30' sport fisherman
Sea Ray 17'
Beach Craft Bonanza N35
Corvette
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if u do get an aftermarket sending unit i would take the extra time to hitch up the wires before u install it in the tank and test the system ...then remove the wire a install in the tank. i say this for 2 reasons one, is that for some reason i have put them in and it was wired backwards from the factory 2 just to make sure it all works right...to find out if ur gauge is working properly, from behind the gauge remove the wire that goes to the sending unit..the gauge should drop to E and then take a jumper wire and go from a good ground to the sending unit side of the gauge..it should jump to full...never should positive power be going to the tank...sounds silly but i have seen it...ps if u have a 2 gauge system the set up might be different
- guglielmo6160
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Fuel Sender
Check this out. Best i have used.
http://www.wemausa.com/
http://www.wemausa.com/
1977-F36
22`Aquasport
1969 18` Donzi 2+3
22`Aquasport
1969 18` Donzi 2+3
- guglielmo6160
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sending unit
The length is critical. Measure the outside of the tank and subtract at least 3/4 of inch to overall length to order. Best to measure from inside the tank straight down where the old sending unit is mounted and subtract 1/2 inch.
1977-F36
22`Aquasport
1969 18` Donzi 2+3
22`Aquasport
1969 18` Donzi 2+3
Removing the sending unit will not give you the length. The set up for Trojan's is a piviting arm with a brass float on the end of it. To get the length measure the inside diamiter. You can easily measure the depth on the end of the tank.
To check to see if your gauge is working, take the wire off the other gauge and connect it to the gauge you are checking and see if you get the same reading.
To check to see if your gauge is working, take the wire off the other gauge and connect it to the gauge you are checking and see if you get the same reading.
Gerry
1979 F36 Twin Chryler 440's
1979 F36 Twin Chryler 440's
- guglielmo6160
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I thought you would use the linear type, that's why you want to measure the tank, so you will know which one to order. Measuring the end of the tank will be easier then trying to measure through the sending unit's hole in the tank. You won't need to remove the sending unit until you have the new one to replace it.
Gerry
1979 F36 Twin Chryler 440's
1979 F36 Twin Chryler 440's
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sending unit
The reason I measured thru the sending unit hole is for an accurate measurement where the sending unit will be. If the tank is warped or there is a bulge in the bottom of the tank it will not show up with measuring the end of the tank. Been there done that.
1977-F36
22`Aquasport
1969 18` Donzi 2+3
22`Aquasport
1969 18` Donzi 2+3