Fuel sender
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5th Wheeling
Joined: Dec 2006
Posts: 38
Likes: 3
Fuel sender
So I bought my 1973 f350 super camper special almost two years ago and when I did I started going through wearable parts and inspecting pieces. The auxiliary tank sender was rusted and didn’t move freely so I replaced it with one from LMC. The fit was perfect but the readings were off. Empty was at a quarter tank and full was way past the F. So I started fiddling with it. I got it to be on the empty line when empty, I had to bend the little cage out of the way to get it there but, here’s my problem, full is a quarter tank. Do I need a new gauge or voltage regulator for the gauge cluster? I’m at a loss.
Laughing Gas
Joined: May 2021
Posts: 1,164
Likes: 360
From: Anderson, California
Hey Ultra,
I just went through this on my '78 E250 club wagon w/ dual-tanks. Very similar to our pickups.
What I did was to cut the float arm, and welded an 'arm-extender' piece which was two 8d galvy nails.
This put the float swing at proper length for slight bending to get my gauge close to fuel levels.
Seems the aftermarket sendor units are China made out of stainless.
If you wish to torch weld stainless, you need to add Argon gas to prevent oxidation of the weld.
What I did, was to use my Mig weldher having the Argon-mix gas, and zapped the nail to the stainless in one-zap. done deal.
I'm very happy now that when I do fill the tank, my gauge now shows full.
If you wish to really dial-in your settings, then fill the tank with known amounts of water as a pre-install gauge-check.
Here is one item I must reluctantly Fess-Up to:
After all of my dual-tank fuel system re-furbishing, I wound up with 5/16" tube in the sending units I ordered online.
Now, a year later, I'm perusing the EarlyFordBronco website, and low-and-behold, they sell 3/8" tube senders !!!!
Why is it that so often I feel like I am always the victim of being "a Day late, and a Dollar short" ! LoL
I just went through this on my '78 E250 club wagon w/ dual-tanks. Very similar to our pickups.
What I did was to cut the float arm, and welded an 'arm-extender' piece which was two 8d galvy nails.
This put the float swing at proper length for slight bending to get my gauge close to fuel levels.
Seems the aftermarket sendor units are China made out of stainless.
If you wish to torch weld stainless, you need to add Argon gas to prevent oxidation of the weld.
What I did, was to use my Mig weldher having the Argon-mix gas, and zapped the nail to the stainless in one-zap. done deal.
I'm very happy now that when I do fill the tank, my gauge now shows full.
If you wish to really dial-in your settings, then fill the tank with known amounts of water as a pre-install gauge-check.
Here is one item I must reluctantly Fess-Up to:
After all of my dual-tank fuel system re-furbishing, I wound up with 5/16" tube in the sending units I ordered online.
Now, a year later, I'm perusing the EarlyFordBronco website, and low-and-behold, they sell 3/8" tube senders !!!!
Why is it that so often I feel like I am always the victim of being "a Day late, and a Dollar short" ! LoL
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