Removal Procedure
- Disconnect the electrical connector from each ignition coil.
- Disconnect the two spark plug wires from the spark plugs
- Remove the two bolts (1) and the 2-3 ignition coil (3) from the engine.
- Remove the two bolts (1) and the 1-4 ignition coil (2) from the engine.
- Remove each spark plug (1) from the cylinder head.
- Inspect the spark plugs. Refer to Spark Plug Inspection .
Notice: This engine is equipped with an aluminum cylinder head. Allow the engine to cool before removing spark plugs. Removing the spark plugs from an engine at operating temperature may damage the spark plug threads in the cylinder head. Also be sure to clean any dirt or debris from around spark plug holes prior to removing spark plugs.
Installation Procedure
- Measure the spark plug electrode gap and adjust as necessary. Refer to Ignition System Specifications .
- Install each spark plug (1) into the cylinder head.
- Install the number 2-3 ignition coil (3) to the number two spark plug.
- Install the number 1-4 ignition coil (3) to the number four spark plug.
- Secure both ignition coils to the engine with the four bolts (1).
- Connect the electrical connectors to the ignition coils.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten each spark plug to 25 N·m (18 lb ft).
Tighten
Tighten the ignition coil bolts to 10 N·m (89 lb in).
