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PIPER COMANCHE SERVice MANUAL
TABLE
vnc-u,
TROUBLESHOOTING CHART (eeae.)
(ENGINE-TURBOCHARGED)
Trouble
Cauc
Remedy
Routh runni. . eJIIine.
Cracked eupne
mouna.
Repair or replace
enJine mount.
UDba1anced propeUer.
Remove propeller and
ba1&nce.
Bent propeUer blades.
Replace propeller.
Defective mountiJII.
IDlt&11 new shock
mouna.
Lead deposit on
spark
Clean or replace plup.
pluto
Malfunctionina eDline,
Check entire eDJine.
Low oil pressure.
Insufficient oil.
Fill oil sump to propCT
level.
Dirty oil screen or
Remove
aod
dean oil
futer.
screen. Replace
filter.
Relief valve OUt of
Adjust vaJvc.
adjusancnt.
Defeetift pressure
Replace gaule.
pUle.
Air lock or dirt in
Remove and clean oil
relief vaJve.
pressure relief vaJve.
Leak in suction line
Check gasket between
or pressure line.
acCCSlOry
housing and
crankcase.
Hilh oil tcmpcraNrc.
Sec "High Oil Temper-
anne"
in Trouble
Column.
StopP. in oil pump
Check line for obsrrue-
intake pa.ss.qe.
tion. Clean suction
sereen.
Wom or scored
Overhaul.
beannp.
POWER PLANT
ISSUED: 8/18/72
2
14
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Table of Contents
Troubleshooting
