Low Oil Pressure On Engine Gage; High Oil Temperature; Excessive Oil Consumption - Superior O-360 SERIES Installation & Operation Manual

7. LOW OIL PRESSURE ON ENGINE GAGE

Table 7-7 • Low Oil Pressure On Engine Gage
Probable Cause
Lack of oil
Air lock or dirty relief valve
Leak in line

High oil temperature

Defective pressure gage.
Stoppage in oil pump intake passage
8. HIGH OIL TEMPERATURE
Probable Cause
Insufficient air cooling
Insufficient oil supply
Low grade of oil
Clogged oil lines or strainers
Excessive blow-by
Failing or failed bearing
Defective temperature gage

9. EXCESSIVE OIL CONSUMPTION

Probable Cause
Low grade of oil
Failing or failed bearings
Worn piston rings
Incorrect installation of piston rings
Failure of rings to seat on new cylinders
© March 2004 Superior Air Parts Inc.
Installation & Operation Manual
O-360 and IO-360 Series Engines
Table 7-8 • High Oil Temperature
Table 7-9 • Excessive Oil Consumption
Correction
Add to proper level.
Clean relief valve.
Inspect gasket between accessory housing and
crankcase.
See "High Oil Temperature" in "Trouble"
column.
Replace defective gage.
Check line for obstruction. Clean suction
strainer.
Correction
Check air inlet and outlet for deformation or
obstruction.
Fill to proper level with specified oil.
Replace with oil conforming to specifications.
Remove and clean oil strainers.
Check condition of engine rings. Replace if worn
or damaged.
Examine sump for metal particles. If found,
engine overhaul may be required.
Replace gage.
Correction
Fill tank with oil of proper weight and grade.
Check sump oil for metal particles.
Install new rings.
Install new rings.
Use mineral base oil. Climb to cruise altitude at
full power and operate at 75% cruise power
setting until oil consumption stabilizes. See
Break-In Procedures, Special Procedures
Section Chapter 5.
4
Chapter 7 • Abnormal Operating Procedures