Piper Comanche PA-24 Service Manual page 519

PIPER COMANCHE SERVICE MANUAL
TABLE VUA.ffi. TROUBLESHOOTING CHART
(ENGINE) (FUEL INJECTOR) (con.)
Trouble
c -
Excessive oil consumption.
Low
andc
of oil.
FailinJ or
failed
bearings.
Wom piston
ri/Jc!.
Incorrect insuII&tion of
piston
rings.
Cold w ... dI .. difficulties.
Cold oil.
I naccurate pressure
rndings.
Overpriming .
Weak battery.
Filulty tgnirion switdl.
2E17
Remedy
Fill WlK widl oil comorming
to
specification.
Check swnp for mew particles.
If found. overhaul of
engine is indicated.
InsWl new """.
InsuI! new
rings.
Move aircraft
intO
a heated
b"", ... H .... oil.
In extreme cold ... cadler. oil
pressure readings up ro
approximately 100 lb •. Do
SOt
necessarily mean
malfunctioDlDg.
Rotate crankshaft in direction
of normal rotation with
throttle "full open". and
mixture
in
·'idle"'C1.lt-off'·
.ad ignition switch "OFF"
Install fully charged batt<:v
Check ground
W\leS.
POWER PLANT
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