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Reissued: August 1, 1986
2K6
ENGINE OIL PRESSURE GAUGE
The oil pressure gauge is mounted in the instrument panel cluster. This gauge will indicate the amount of
oil pressure available at the pressurized engine oil passage.
CHART 7703. TROUBLESHOOTING (ENGINE OIL PRESSURE GAUGE)
Excessive error at zero. Pointer loose on shaft. Replace instrument.
Overpressure or seasoning
of bourdon tube.
Excessive scale error. Improper calibration ad- Replace instrument.
justment.
Excessive pointer oscilla- Air in line or rough engine Disconnect Line and fill with
tion. relief valve. light oil. Check for leaks.
If trouble persists, clean
and adjust relief valve.
Sluggish operation of Engine relief valve open. Clean and check.
pointer or pressure fails
to build up.
Line restriction to instrument. Clean and check.
Loss of oil in engine or Shut down engine immediately.
other engine failure.
TEMPERATURE
OIL TEMPERATURE INDICATOR
The oil temperature indicator is mounted in the instrument panel cluster. This instrument provides a
temperature indication of engine oil in degrees Fahrenheit. The instrument has a temperature bulb in the oil
screen assembly of the engine accessory section.
TROUBLE CAUSE REMEDY
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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