Operation CHARM: Car repair manuals for everyone.
Home >> Mitsubishi >> 2003 >> Lancer Evolution L4-2.0L DOHC Turbo >> Repair and Diagnosis >> Maintenance >> Tune-up and Engine Performance Checks >> Spark Plug >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Spark Plug: Testing and Inspection

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 and platinum 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: ..................................1.0 mm (0.039 inch)
pro multis · About Operation CHARM