Instrument Panel, Gauges and Warning Indicators: Specifications

Fuel Gauge Calibration
Pointer Position = Resistance
Empty Graduation = 90 ohms (±3)
Empty Stop = more than 96.5 ohms
Full Graduation = 12 ohms (±3)
Full Stop = less than 8 ohms
1/2 Graduation = 45.3 ohms (±3)

Oil Pressure Gauge Calibration
Pointer Position = Resistance
Low Graduation = 100 ohms
High Graduation = 12 ohms

Speedometer Calibration
Pointer Position = Frequency
20 mph (+4.5 / -1.5) = 44.4 Hz
55mph (+3.3 / -0.3) = 122.2Hz
75 mph (+3.3 / -0.3) = 166.5 Hz

Temperature Gauge Calibration
Pointer Position = Resistance
Cold Graduation = 655 ohms
Hot Graduation = 64 ohms

Voltmeter Calibration
Pointer Position = Input Voltage
12 Graduation (±6°) = 12 volts
16 Graduation (±3°) = 16 volts