Piper ARROW III, Service Manual

Page: 377 / 594

2E3
TABLE VIIIA-II. ENGINE TROUBLESHOOTING
Failure of engine to Lack of fuel. Check fuel system for
start. leaks. Fill fuel tank.
Clean dirty lines, strain-
ers or fuel valves.
Check fuel selector valve
for proper tank.
Check fuel pressure with
electric boost pump ON.
Check mixture control
knob for full rich.
Overpriming. Open throttle and “unload”
engine by engaging
starter. Mixture in
idle-cut-off.
Incorrect throttle Open throttle to one-
setting. eight of its range.
Defective spark plugs. Clean and adjust or re-
place spark plugs.
Defective ignition wire. Check with electric test-
er and replace defective
wires.
Defective battery. Replace with charged
battery.
Improper operation of Clean points. Check in-
magneto breaker. ternal timing of mag-
netos.
Lack of sufficient fuel Disconnect fuel line at
flow. fuel injector and check
fuel flow.
Trouble Cause Remedy
Revised: 8/31/77
CHEROKEE ARROW III SERVICE MANUAL
POWER PLANT - LYCOMING