Piper Comanche PA-24 Service Manual page 610

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Rouah ruaniDg .,.;ne.
Low oil pressu.re.
POWER PLANT
ISSUED: 8/18172
PIPER COMANCHE SERVICE MANUAL
TABLE VUC-Il. TROUBLESHOOTING OIART
(coaL)
(DlGJNI·TU1lBOCHARGED)
c.u..
ac-ty
Crackecl eDgiDe
IIID1IIIts.
Repair or replace
cnline mou.nt.
UDbalaDced propeUer. Remove propeller and
balance.
Bent propeUec blades. Replace propeller.
Dcfemyc mountiDs. Install new sbock
mou.na.
Lead deposit on
spark
Clean or replace plur.
plug.
Malfunctioning eDline. Cbeck
eDm
eDline.
Insufficient oil. F ill oil sump to proper
level.
DirTy oil screen or Remove sad dean oil
filter. screen. Replace
filter.
Relief valve out of
Adjust valve.
sdjusanent.
Defeetive pressure
Repl""e gauge.
puge.
Air lock or dirt in
Remove and clean oil
relief valve. pressu.re relief valve.
Leak in suction line Check gasket between
or pressure llnc.
accessory houstng and
crankcase.
High oil temperature.
S.e "High Oil Temper-
ature" in Trouble:
Column.
StOppage in
au
pump Check line for ob.trUc-
""ak.
passage.
tion. Clean suctJ.on
screen.
Worn or scored
Overha.ul.
bearings.
2
14