Plymouth Workshop Service and Repair Manuals

Spark Plug: Specifications

Spark Plug Torque Specification

Spark Plug ..................................................................................................................................................................................... 15-21 Ft. Lbs. (20-29 Nm)

Spark Plug Gap Specification

Factory Installed Plug

NIPPONDENSO .................................................................................................................................................................. 0.035-0.039 inch (0.9-1.0 mm)*

NGK ..................................................................................................................................................................................... 0.039-0.043 inch (1.0-1.1 mm)*

Alternate Plug

CHAMPION ........................................................................................................................................................................ 0.039-0.043 inch (1.0-1.1 mm)*

NIPPONDENSO .................................................................................................................................................................. 0.035-0.039 inch (0.9-1.0 mm)*

* Canada .............................................................................................................................................................................. 0.028-0.031 inch (0.7-0.8 mm)