Inspect Electrode - Toyota 7M-GE Repair Manual

IO-8
- On-Vehicle Inspection (7M-GE)
(Platinum tipped Type Spark Plug)
CAUTION:
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Never use a wire brush for cleaning.
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Never attempt to adjust gap on used plug.
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Spark plugs should be replaced every 80,000 miles
(100,000 km).
Megger
IGOlr 17
1. INSPECT ELECTRODE
(a) If using a megger (insulation resistance meter):
0 Remove the high-tension cords. (See page G-6)
0 Measure the insulation resistance.
Correct insulation resistance:
10 MQ or more
If less than 10 MAI , proceed to step 2.
I
.
IG01481
IG059
0 Visually inspect the spark plugs.
If the electrode is dry ,.... Okay
If the electrode is wet ..,.. Proceed to step 3
2, REMOVE SPARK PLUGS
(a) Remove the high-tension cords. (See page IS-61
Ib) Using SST, remove the spark plug.
SST 09155-l 6100