Make sure you bend the arm to get empty correct. After that it is not bad and THEN the meter match will work as expected if it still bothers you.
Fuel tank sending unit
- Thread starter Gordon67dartgt
- Start date
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Make sure you bend the arm to get empty correct. After that it is not bad and THEN the meter match will work as expected if it still bothers you.
IMHO just go buy the meter match now.
The sender should be reading the resistance of the red triangles on the graph.
its going to read empty for about 4-5 gallons
then read 1/4 when there are about 9 gallons in the tank
then read about 3/4 when the tank has 15 gallons in it.
Then read full for the top 3-4 gallons
The sender should be reading the resistance of the red triangles on the graph.
its going to read empty for about 4-5 gallons
then read 1/4 when there are about 9 gallons in the tank
then read about 3/4 when the tank has 15 gallons in it.
Then read full for the top 3-4 gallons
Not my real world experience with the Spectra. It stays full for ever. Drops to E in about 50 miles then E for ever.
Jim
Everyones experiance will be a bit diferent. Buit I feel your pain.
All my testing was done in my 67 Dart 18 gallon tank original wiring and gauges. I drained the tank dry with each sender and added 1 gallon at a time (sloshing the fuel between readings) recorded the sender Ohms readings. For the gauge (I had the battery on a charger to keep the battery voltage as consistant as posible.) I got 100W 1 ohm and 10 ohm resisters and went between the fuel tube and the sender wire starting about 9 ohms and going up at the needed resistance to get the gauge to read E (not resting no poser empty) 1/4, 1/2, 3/4, Full
then plotted it all.
Did you do the posts and demos of why the short arm sucks here on FABO? Those were enlightening and dead on my experience. I have a 63 Dart, 66 Valiant and 72 Duster. They all had Spectra’s that are now in the trash and all have A100 units from Vans.
Jim
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Not me. I did all the graphs and single gallon testing
The OEM superspeeds sender (I have one in my dart now) looks just like the aftermarket senders but reads perfectly.
Jason B.
Well-Known Member
But there is no OEM option available anymore, correct?
They can be had BUT you need the supersedes parts number.
google these numbers in your search for an OEM fuel sender. Just watch out for NEW ones being passed off as OEM. If it's "new" it's not OEM unless NOS
2421493 is superseded by
2932960 which is superseded by
3621615 which is superseded by
04051004
still think, with modern lazer etching
a resistor of the proper shape is a money maker
Heater tape for sealing machines
the 1/2 hourglass shape is how to solve the non linear issue
determining the "resistive thermal load" would be based upon thickness
would work to fix gauges, too
The aftermarket could do the resister board correctly if they took the time to understand the curve needed for the gauge and the curve needed for the gas tank shape
A100 sender from Vans Auto is about as good as you can get aftermarket
middleagecrisis
Well-Known Member
it will not read correctly
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