Spark Plug: Service and Repair

REMOVAL
- Remove the wire from each spark plug by grasping the molded boot with tool T74P-6666-A or equivalent. Twist the boot until it loosens and then pull it off the spark plug. Do not pull on the wire, as the connection may become damaged.
- Any wire damaged must be replaced. Each original spark plug wire is numbered for the cylinder to which it is designated. If wires are not numbered, each wire should be numbered as to the plug from which it was removed.
- Clean the area around each spark plug port with compressed air.
- Using the proper size spark plug socket remove the spark plugs.

INSTALLATION
- Check the gap on each new spark plug and set to specification. Specifications
- Install each spark plug and tighten to 9-20 Nm (7-15 ft-lbs).

Cylinder Numbering And Distributor Location:

Location On Distributor:

- Coat the inside of each spark plug boot with silicone dielectric compound. Connect each spark plug wire to the plug from which it was removed. Be sure each wire is fully depressed on each plug and molded boot is firmly in place.