Vanden Plas L6-4.2L (1982)
Spark Plug: Specifications
Spark Plug
Gap .......................................................................................................................................................................................................... .035 in (0.9 mm)
Torque to ....................................................................................................................................................................................... 17-20 lb ft (23-28 Nm)
NOTE: Field experience has shown that a plug gap of 0.040 - 0.042 in will give a better idle condition in many instances of poor quality idle.