74 - 00 - 00
Page - 74-02
Reissued: August 1, 1986
2I22
CHART 7401. TROUBLESHOOTING (MAGNETO)
Failure of engine to start. Defective spark plugs. Clean and adjust or replace
spark plugs.
Defective ignition wire. Check with electric tester
and replace defective wires.
Defective battery. Replace with charged
battery.
Improper operation of Check points. Check in-
magneto breaker. ternal timing of magnetos.
Failure of engine to idle Faulty ignition system. Check entire ignition system.
properly.
Low power and uneven Defective spark plugs. Clean and gap or replace
running. spark plugs.
Magneto breaker points Clean points. Check in-
not working properly. ternal timing of magnetos.
Defective ignition wire. Check wire with electric
tester. Replace defective
wire.
Defective spark plug termi- Replace connectors on
nal connectors. spark plug wire.
Failure of engine to de- Faulty ignition. Tighten all connections.
velop full power. Check system with tester.
Check ignition timing.
TROUBLE CAUSE REMEDY
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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