PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 3
Nov 30/06
5F3
79-30-00
3. Oil T
emper
ature
A. Indicator
(1) Description
The oil temperature indicator is part of the combination engine gauge which also includes the
oil pressure gauge and the cylinder head temperature gauge. This instrument will display a
temperature indication of the engine oil in degrees Fahrenheit.
(2) Troubleshooting
See Chart 2.
(3) Calibration
See Figure 1.
(4) Removal and Installation
See Face-Mounted Instruments, 39-10-00.
B. Bulb
A standard temperature bulb, located in the oil filter housing on the engine accessory section,
provides a signal to the indicator.
(1) Removal
(a) Remove safety wire from electrical connector and temperature bulb.
(b) Remove electrical connector.
(c) Unscrew and remove temperature bulb.
(2) Installation
(a) Screw in and tighten temperature bulb, then safety.
(b) Connect electrical connector and safety.
CHART 2
TROUBLESHOOTING OIL TEMPERATURE INDICATOR
Trouble Cause Remedy
Instrument fails to read. Broken or damaged sensor. Check engine unit.
Open wire. Check wiring to instrument.
Excessive scale error. Improper calibration adjustment. Replace instrument.
Pointer fails to move as Broken or damaged sensor. Check engine unit.
engine is warmed up.
Open wire(s). Check wiring to instrument.
Dull or discolored markings. Age. Replace instrument.
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