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Home >> Mitsubishi >> 2004 >> Lancer Evolution >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Ignition System) >> On-Vehicle Service >> Spark Plug Check And Cleaning
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Spark Plug Check And Cleaning

WARNING: This page is about a different car, the 2004 Mitsubishi Galant. However, it is still accessible from the selected car via links, so may be relevant.
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) 

Fig 1: Checking Plug Gap
G00944806Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.