Effectivity 71-00-02
PA-28RT-201 Page 71-16
December 1, 1978
3C5
CHART 7102. ENGINE TROUBLESHOOTING
Low oil pressure. (cont.) Stoppage in oil pump intake Check line for obstruction.
passage. Clean suction strainer.
High oil temperature. See “High Oil Temperature”
in “Trouble” column.
High oil temperature. Insufficient air cooling. Check air inlet and outlet
for deformation or obstruc
tion.
Insufficient oil supply. Fill oil sump to proper level
with specified oil.
Low grade of oil. Replace with oil conforming
to specifications.
Clogged oil lines or strainers. Remove and clean oil
strainers.
Excessive blow-by. Usually caused by worn or
stuck rings.
Failing or failed bearing. Examine sump for metal par
ticles. If found, overhaul of
engine is indicated.
Defective temperature gauge. Replace gauge.
Excessive oil consumption. Low grade of oil. Fill tank with oil conforming
to specifications.
Failing or failed bearings. Check sump for metal par-
ticles.
Worn piston rings. Install new rings.
Incorrect installation of Install new rings.
piston rings.
Failure of rings to seat (new Use mineral base oil. Climb
nitrided cylinders). to cruise altitude at full
power and operate at 75%
cruise power setting with
high oil temperature until
oil consumption stabilizes.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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