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Spark Plug Check And Cleaning

CAUTION:
  • Do not attempt to adjust the gap of the iridium plug.
  • Cleaning of the iridium plug may result in damage to the iridium tips. Therefore, if carbon deposits must be removed, use a plug cleaner and complete cleaning within 20 seconds to protect the electrode. Do not use a wire brush.

Check the plug gap and replace if the limit is exceeded.

Standard value: 0.7 - 0.8 mm (0.028 - 0.031 inch) 

Limit: 

1.2 mm (0.047 inch) < 2.4L Engine > 

0.95mm (0.037 inch) < 3.8L Engine > 

Fig 1: Checking Plug Gap
G04237128Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.