sending unit compatibility???
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
What tank are you using in this swap?
Elder User
Joined: May 2005
Posts: 581
Likes: 1
From: Montana
I used a tank from a 76 F-150 and installed it behind the rear axle and the guage works very well and is accurate. i put one from a bronko in my other 66 and it doesn't work at all but i am more suspect that the sender is shot as i did not do anything to it while it was out and easy to get at. now i'm to lazy to dismantle the whole thing again to fix it so i run that tank until its empty and switch to the other. PITA. but laziness is winning. Dutch
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
I used a tank from a 76 F-150 and installed it behind the rear axle and the guage works very well and is accurate. i put one from a bronko in my other 66 and it doesn't work at all but i am more suspect that the sender is shot as i did not do anything to it while it was out and easy to get at. now i'm to lazy to dismantle the whole thing again to fix it so i run that tank until its empty and switch to the other. PITA. but laziness is winning. Dutch
The floats are made from two pieces of copper soldered together.
Solder breaks down, gas seeps in, float settles to the bottom of the tank.
Elder User
Joined: May 2005
Posts: 581
Likes: 1
From: Montana
No i did not even take the tank apart when i bought it , i just installed it hopeing that it would work. Ha hahahah, Murphy"s law is alive and lives in my garage so if anyone whats him i'll send him to ya. LOL. Dutch
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Elder User
Joined: Nov 2005
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From: Benton, AR
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Junior User
Joined: Jan 2006
Posts: 88
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From: sw Ohio
checking the sender resistance
in general the sending units are resistors. checking with an Ohm's meter move the float through it's range and note the resistance at each end of the range. a bad unit will read either 0 or 1000's ohm's somewhere in the range. if the high and low resistance values of two good units are nearly the same then they are compatible.
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