Camry Coupe 2-Door V6-3.0L (1MZ-FE) (1996)
Spark Plug: Testing and Inspection
SPARK PLUGS INSPECTION
NOTICE:
^ Never use a wire brush for cleaning.
^ Never attempt to adjust the electrode gap on a used spark plug.
^ Spark plugs should be replaced every 100,000 km (60,000 miles).
1. REMOVE IGNITION COILS
2. INSPECT ELECTRODE
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Using a megger (insulation resistance meter), measure the insulation resistance.
Standard correct Insulation resistance: 10M Ohms or more
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If the resistance is less than specified, proceed to step 4.
HINT: If a megger is not available, the following simple method of inspection provides fairly accurate results.
SIMPLE METHOD:
(a) Quickly race the engine to 4,000 rpm 5 times.
(b) Remove the spark plug.
(c) Visually check the spark plug.
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If the electrode is dry... OK
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If the electrode is wet... Proceed to step 4
(d) Reinstall the spark plug.
3. REMOVE SPARK PLUGS
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Using a 1 6 mm plug wrench, remove the 6 spark plugs from the RH and LH cylinder heads.
4. VISUALLY INSPECT SPARK PLUGS
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Check the spark plug for thread damage and insulator damage.
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If abnormal, replace the spark plug.