SPARK PLUGS INSPECTION
IG01G–02
NOTICE:
• Never use a wire brush for cleaning.
• Never attempt to adjust the electrode gap on used spark
plug.
• Spark plug should be replaced every 100,000 km (60,000
miles).
1. REMOVE V–BANK COVER
Using a 5 mm hexagon wrench, remove the two nuts and V–
bank cover.
2. DISCONNECT HIGH–TENSION CORDS FROM SPARK
PLUGS
3. INSPECT ELECTRODE
Using a megger (insulation resistance meter), measure the
insulation resistance.
Standard correct insulation resistance:
10 M or more
If the resistance is less than specified, proceed to step 4.
HINT: If a megger is not available, the following simple meth-
od of inspection provides fairly accurate results.
(Simple Method)
(a) Quickly race the engine to 4,000 rpm five times.
(b) Remove the spark plug. (See step 4)
(c) Visually check the spark plug.
If the electrode is dry ... Okay
If the electrode is wet ... Proceed to step 5
(d) Reinstall the spark plug.
(See step 8 on page IG–10)
4. REMOVE SPARK PLUGS
Using a 16 mm plug wrench, remove the spark plug.
–IGNITION SYSTEM ON–VEHICLE INSPECTION
IG–9
To Next Page
Loading...
Need help?
General
