Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1410 / 1956

PAGE 2
Feb 28/07
7F12
74-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
CHART 1
TROUBLESHOOTING IGNITION SYSTEM
Trouble Cause Remedy
Failure of engine to start. Defective spark plugs. Clean and adjust or
replace spark plugs.
Defective ignition wire. Check with electric tester
and replace any defective
wires.
Improper operation of Check timing of magnetos.
magneto.
Improper switch wiring Reverse magneto switch
for left magneto starting. wires.
Frozen spark plug Replace spark plugs or
electrodes. dry out removed plugs.
Shorted ignition switch Check and replace or
or loose ground. repair.
Defective vibrator. Replace vibrator.
Failure of engine to idle Faulty ignition system. Check entire ignition
properly. system.
Improper spark plug Check spark plug gap.
setting for altitude.
Low power and uneven Defective spark plugs. Clean or replace sparkplug.
running engine.
Magneto not working Check timing of magneto.
properly.
Defective ignition wire. Check wire with electric
tester. Replace defective
wire.
Defective spark plug Replace connectors or
terminal connections. spark plug wire.
Improper ignition timing. Check magnetos for timing
and synchronization.
Failure of engine to develop Faulty ignition. Tighten all connections.
full power. Check system. Check
ignition timing.
Rough running engine. Lead deposit on spark Clean or replace plugs.
plug.