Teledyne TSIO-360-RB, Maintenance Manual

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12-4
12-3 IGNITION SYSTEM INSPECTION (continued)
NOTE . . . Minor changes in magneto timing can be expected during normal engine service.
The time and effort required to check and adjust the magnetos to specifications is slight and
the operator will be rewarded with longer contact point life, smoother engine operation and
less corrective maintenance between routine inspections. See Section 12-5 for ignition
system maintenance of the harness, magneto, spark plugs and timing procedure.
WARNING
Spark plug and spark plug lead maintenance is necessary to insure proper magneto
operation. Failure to maintain the spark plugs and ignition harness leads will result
in ignition system malfunction and subsequent engine malfunction.
Spark Plug Inspection:
Disconnect ignition leads and remove spark plugs. Spark plug inspection must be
performed in accordance with Section 12-5 "Spark Plugs."
500 HOUR INSPECTION - At each 500 hour interval the magnetos must be disassembled
and inspected in accordance with the applicable magneto service manual. Magnetos
require overhaul at engine TBO, every 4 years, or as specified by the manufacturer. See
Chapter 1 "Related Publications" for manual ordering information.
12-4 IGNITION TROUBLESHOOTING
The following troubleshooting chart is provided as a guide. Review all probable causes
given, check other listings of troubles with similar symptoms. Items are presented in
sequence of the approximate ease of checking not necessarily in order of probability.
TROUBLE PROBABLE CAUSE CORRECTION
Engine Fails To Start Due
To Ignition Troubles Ignition switch OFF or grounded
switch wires Turn switch ON. Check for
grounded wires
Spark plugs fouled improperly
gapped or loose Remove and clean. Adjust to
proper gap in accordance with
Spark Plug Manufacturer's
Specifications. Re-install and
torque to 300-360 inch pounds.
Magnetos improperly timed to
engine See Section 12-5 Ignition System
Maintenance, "Placing Crankshaft
In Timing Position" and "Magneto
Timing And Installation On
Engine."
Shorted condenser Replace condenser in accordance
with magneto manufacturer's
instructions.
Magneto internal timing incorrect
or timed for opposite rotation. Inspect internal timing of
magnetos in accordance with the
magneto manufacturer's
instructions. See Section 12-5
Ignition System Maintenance,,
"Placing Crankshaft In Timing
Position" and "Magneto Timing
And Installation On Engine."