Spark Plug: Service and Repair

Spark Plug Replacement

Removal Procedure

1. Remove the spark plug wires. Refer to Spark Plug Wire Replacement Service and Repair.






2. Loosen each spark plug 1 or 2 turns.

3. Use a brush, or use compressed air in order to remove any dirt from the spark plugs.

4. Remove the spark plugs one at a time and place each plug in a tray marked with the corresponding cylinder numbers.

Installation Procedure





Note: The spark plug comes pre-gapped. Do not change the spark plug gap from 1.01 mm (0.040 in).

1. Inspect each spark plug gap. Adjust each plug as needed. Refer to Ignition System Specifications [1][2]Specifications.

2. Hand start the spark plugs in the corresponding cylinders.

Caution: Refer to Fastener Caution Fastener Caution.

3. Tighten the spark plugs. Tighten the engine spark plug on a NEW cylinder head to 20 Nm (15 lb ft)and the engine spark plug on subsequent installations to 15 Nm (11 lb ft).

4. Install the spark plug wires. Refer to Spark Plug Wire Replacement Service and Repair.