MAINTENANCE
114
SPARK PLUG REMOVAL AND INSPECTION
1. Disconnect the wiring harness connectors from the pencil
coils.
2. Remove the mounting bolts that are securing the pencil coils.
Pull the pencil coils from the spark plugs using a twisting
motion.
a
b
c
3658
a -
Wiring harness connector
b -
Pencil coil
c -
Bolt
3. Remove the spark plugs to inspect. Replace spark plug if
electrode is worn, threads of seal area are corroded, or the
insulator is rough, cracked, broken, blistered or fouled.
14794
4. Set the spark plug gap to specifications.
27848
Spark Plug
Spark plug gap
0.8 mm (0.0315 in.)
Summary of Contents for 135 Verado
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