Spark Plug: Service and Repair

TOOL REQUIRED
J 39358 Spark Plug Socket Wrench or equivalent.

REMOVE OR DISCONNECT

NOTICE:
Pull on spark plug boot or heat shield only, twisting a half turn to release seal while removing. Do not pull on wire or spark plug lead may be damaged.

1. Spark plug lead from spark plug.
2. Spark plug using J 39358.

INSTALL OR CONNECT

NOTICE:
Be sure plug threads smoothly into cylinder head and is fully seated. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by , or thread damage. Follow recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.

1. Spark plug using J 39358.
- Be sure spark plug is properly gapped to 1.50 mm (0.060 in).

Tighten
Spark plug(s) to 20 Nm (15 lb. ft.)

2. Spark plug lead to spark plug.