Is it straight forward to retrofit a fuel gauge into my 500R. I prefer to see how much fuel Ive got than the stress of wondering when the little light will come on
I know how a normal sender works, which is why I was surprised that you couldn't just fit a gauge. I thought maybe the 500 didn't have the resistor part, and was a simple switch.The sender is in the form of a variable resistor, like a volume control on a radio if you’ve ever taken one apart-
So what happens in the Fiat sender, the long rod which captivates the float, at the sender end has a small brass tab , and as the float lowers ( ie empties) the rod brushes the tab and creates a circuit, and then the light “wavers”, depending on gradient, acceleration etc.
On a "F" (presumed identical) the sender doesn't have rheostat windings; it is just a make or brake of the circuit.Is the sender on the R just a switch then?