High Oil Temperature - Textron Lycoming IO-540 Series Operator's Manual

TEXTRON LYCOMING OPERATOR'S MANUAL
0-540 & 10-540 SERIES
SECTION 6
TROUBLE
PROBABLE CAUSE
REMEDY
Rough Engine
(Cont.)
Low Oil
Pressure
Plugged fuel
injector nozzle
Insufficient oil
Clean or replace nozzle.
Fill sump to proper level
with recommended oil.
Defective pressure
gage
Replace.
Air lock or dirt in
relief valve
Leak in suction line
or pressure line
High oil temperature
Stoppage in oil pump
intake passage
Remove and clean oil
pressure relief valve.
Check gasket between
accessory housing and
crankcase.
See 'High Oil Temp-
erature" in "Trouble"
column.
Check line for obstruction.
Clean suction strainer.
High Oil
Temperature
Insufficient air cooling
Check air inlet and outlet
for deformation or
obstruction.
Insufficient oil supply
Defective temperature
gage
Low grade of oil
Clogged oil lines or
strainers
Fill oil sump to proper
level with specified oil.
Replace gage.
Replace with oil conform-
ing to specifications.
Remove and clean oil
strainers.
6-5