Volvo Penta 5.7 Gil-B, Operator'S Manual

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Instrumentation
The instrument panel for the Volvo Penta engines is equipped with a tachometer, temperature gauge, oil pressure gauge,
voltmeter, 2 fuses, instrument panel lighting switch, and an ignition switch. Instruments, fuses, and ignition switch can
also be supplemented with extra Volvo Penta instruments such as: synchronization tachometers, fuel gauge, fresh water
gauge, clock, speed log, or rudder indicator.
1. Tachometer
Shows the RPM of the engine. Multiply this value by 100
for revolutions per minute. Integral “Hours run” meter (only
on separately installed instrument) displays the engine’s
operating time in hours and tenths of an hour.
2. Temperature Gauge
Indicates the engine coolant temperature. Normal operat-
ing temperature is 70°-73°C (157°-163°F) for 5.7 liter
engines and 59°-61°C (138°-142°F) for the 8.1 Liter
engines.
3. Oil pressure Gauge
Indicates the engine oil pressure. Normal operating oil
pressure should be approximately 150-500 kPa (21-71
psi). Lower oil pressure is normal and should be expected
at idle after a sustained cruise.
4. Voltmeter
Indicates the charge voltage from the alternator which
should normally be approximately 14 Volts. With the
engine stopped and the switch on, battery voltage is
normally indicated as 12 Volts.
5. Instrument Lighting
Turns instrument panel lights on or off.
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