Piper Cherokee Six - Page 456

Failure of engine to
start.
(cont.)
Failure of engine to
idle
properly.
Uneven
cylinder
com-
pression.
Faulty
ignition
system.
Insufficient
fuel pres-
sure.
Leak in air bleed nozzle
balance line.
Plug
fuel
injector
nozzle.
Flow divider fitting
plugged.
PIPER
CHEROKEE
SIX SERVICE
MANLAL
TABLE VIIA-III.
ENGINE
TROUBLESHOOTING
CHART
(cont.)
Trouble
Cause
Remedy
Internal
failure.
Incorrect idle mixture.
Leak in the induction
system.
Incorrect
idle adjust-
ment.
Check
oil screens
for
metal particles. If
found.
complete
over-
haul of engine
may
be
indicated.
Adjust mixture.
Tighten all
connections
in the induction system.
Replace any parts that
are defective.
Adjust throttle stop to
obtain correct idle.
Check
condition
of pis-
ton
rings and
valve
seats.
Check entire ignition
system
Adjust fuel
pressure.
Check connection and
replace
if
necessary.
Clean
or replace
nozzle.
Clean fitting.
Readjustment
of fuel
in-
iector
by authorized
personnel
is
indicated.
Low power and uneven
running.
Mixture too rich: indi-
cated by sluggish en-
gine
operation.
red ex-
haust flame at night.
Extreme cases indi-
cated by
black
smoke
from exhaust.
Revised: 11/4/83
2I12
POWER PLANT