Trouble
Cause
Remedy
High oil temperature.
Failing or failed bearing.
Examine sump for metal
(cont.)
particles and, if found, over-
haul engine.
Defective thermostats.
Replace.
Defective temperature
replace gauge.
gauge.
Excessive blowby.
Usually caused by weak or
stuck rings.Overhaul.
Improper engine operation.
Check entire engine.
Excessive oil consumption.
Leakage through engine
Replace fuel pump O-ring.
fuel pump vent.
Engine breather or vacuum
Check engine and over-
pump breather.
haul or replace pump.
Failing or failed bearing.
Check sump for metal
particles and, if found, over-
haul of engine is indicated.
Worn or broken piston rings.
Install new rings.
Incorrect installation of
Install new rings.
piston rings.
External oil leakage.
Check engine carefully for
leaking gaskets, O-rings or
sand holes.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
POWER PLANT
1K19
TABLE VIII-II. ENGINE TROUBLESHOOTING CHART (cont)
