I installed a TR4A voltmeter in my TR3 when I converted to an alternator. I put a new voltage stabilizer in line in front of the fuel gauge to lower the voltage to 10 volts as required. The gauge works but the dial will only read a little before the half way mark when the tank is full? Is this an issue with the stabilizer or does the tank sending unit float arm need to be bent? The sending unit float is centralized and not hitting the sides.