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yo,
Our Sponsor here has them for both tank sizes; Jeff's Bronco Graveyard @ http://broncograveyard.com/bronco/c-86-bronco-fuel-systems.html
78-86 has the old sender...75 - 10 ohm (empty-full)
This is by by Auto Meter @ http://www.autometer.com/tech_faq_answer.aspx?sid=1&qid=56
"...The Ford Fuel Level sensor with a 73-10ohm range operates with the following ohm ranges for Full, Half, Empty, and Below Empty:
Full: 10ohms
Half Tank: 25ohms
Empty: 50ohms
Pointer Width Below E: 73ohms
If you have replaced the original equipment Ford sending unit in your vehicle with an aftermarket sending unit, you may notice that the gauge will match the sending unit at the Full and Empty portions of the scale, but that the readings in between will not match up. The reason for this is that some aftermarket senders operating with the 73-10ohm range now utilize a linear movement instead of the original non-linear scale. The comparative ohm reading difference for Full, Half, and Empty have been supplied below for your reference.
Full: 10ohms
Half Tank: 41ohms
Empty: 73ohms
As you can see these numbers differ radically from those of the factory Ford sending units and have a drastic effect upon the gauge readings.
In the event that you have this situation, we recommend one of two options. The first would be to seek an original equipment fuel level sending unit from Ford directly for your vehicle..." read more
Mike,I replaced the original tank (it had rusted holes in it) to a 33 gallon tank. I got a 33 gallon sending untit from JBG,but its not giving a correct reading. Do you think Ford would have a sending unit for a 78 with a 33 gallon tank and did the 78 Bronco have the 33 gallon tank in 78? Thanksyo,
Our Sponsor here has them for both tank sizes; Jeff's Bronco Graveyard @ http://broncograveyard.com/bronco/c-86-bronco-fuel-systems.html
78-86 has the old sender...75 - 10 ohm (empty-full)
This is by by Auto Meter @ http://www.autometer.com/tech_faq_answer.aspx?sid=1&qid=56
"...The Ford Fuel Level sensor with a 73-10ohm range operates with the following ohm ranges for Full, Half, Empty, and Below Empty:
Full: 10ohms
Half Tank: 25ohms
Empty: 50ohms
Pointer Width Below E: 73ohms
If you have replaced the original equipment Ford sending unit in your vehicle with an aftermarket sending unit, you may notice that the gauge will match the sending unit at the Full and Empty portions of the scale, but that the readings in between will not match up. The reason for this is that some aftermarket senders operating with the 73-10ohm range now utilize a linear movement instead of the original non-linear scale. The comparative ohm reading difference for Full, Half, and Empty have been supplied below for your reference.
Full: 10ohms
Half Tank: 41ohms
Empty: 73ohms
As you can see these numbers differ radically from those of the factory Ford sending units and have a drastic effect upon the gauge readings.
In the event that you have this situation, we recommend one of two options. The first would be to seek an original equipment fuel level sending unit from Ford directly for your vehicle..." read more
I got out of the army in 72. I couldn,t find a job and everyone thought we were either crazy or a ******. In 76--I joined the navy (Feb 76) I was on the Indy from Feb 76-Feb 77. Then I went to shore duty at *** AND NAS Norfolk.Johnny,
I tested many electrical systems on Indy in mid to late 80s during it's modernization in Philly!
From a fading memory, I flew over Indy around Christmas time 65 while it was in Norfolk.
Thanks for your Service Johnny!