[DeTomaso] fuel gauge

[JDeRyke at aol.com]

When Bill Taylor and I looked into fuel senders a while ago, we found that 
the potentiometer section of an Alfa Romeo sender was variably wound- the 
spacing between the wires was different on top than in the  middle. In all the 
Pantera senders (there are at least three different ones '71-75), the 
identical-looking potentiometer's wire spacing is very regular. So we concluded that an 
Alfa potentiometer adapted into a Pantera sender assembly would likely give weird 
results, or at least some calibration difficulty in the tall, oddly-shaped 
Pantera tank. Alfa tanks are low and wide.
On the low-fuel warning light part of the sender, its a 1/2" long copper 
contact attached to the float arm part of the sender, that makes separate contact 
with a piece on the bottom of the potentiometer to complete its circuit and 
turn on a light. This is identical in both the Pantera and Alfa senders. I'm at 
a loss as to how this could turn on "early" as the float in any sender must be 
nearly at the bottom of its swing before the short contact will reach ground. 
Good luck- J DeRyke


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