SPARK PLUG CHECK AND CLEANING <6G72 with catalytic converter>

<Tri-electrode plug>

note

As the prospective distance for this spark plug replacement, 100,000 km is for the with semi surface discharge. Unless the plug is remarkably burned or worn, and the insulator plug is damaged, adjust the plug gap and check the plug state. Clean the plug if necessary.

1.Check that the plug is not burned, that the insulator plug is not damaged, and that the seizure state is good.

2.If cleaning is required due to carbon deposits, etc., clean using a plug cleaner or wire brush, etc.

3.Check the plug gap using a plug gap gauge, and adjust if not within the standard value.
Standard value:

Manufacturer
Type
Standard value (mm)

NGK
BKR6ETUB
0.5 - 0.7

note

See the applicable service manual for the manufacturer, type and standard value. Manufacturer Type Standard value

<Platinum plug>

caution

Never attempt to adjust the gap of the platinum plug.
Do not attempt to clean the spark plug because it may result in damage to the electrode. However, if remarkable carbon deposits must be removed, using a plug cleaner, complete the cleaning within 20 seconds to protect the electrode. Do not use a wire brush.

note

As the prospective distance for this spark plug replacement is 100,000 km. If the plug gap and insulation resistance are normal, check the plug state and clean it if necessary.

SPARK PLUG GAP CHECK

Check the plug gap with the wire type plug gap gauge. Replace it if the limit is exceeded.

Standard value, limit:

Manufacturer
Type
Standard value (mm)
Limit (mm)

NGK
PFR6J-11
1.0 - 1.1
1.3

DENSO
PK20PR-P11
1.0 - 1.1
1.3

SPARK PLUG INSULATION RESISTANCE CHECK

1.Measure the insulation resistance. If the insulation resistance of the spark plug is under the limited value, clean the plug within 20 seconds using a plug cleaner.
2.After cleaning, measure the insulation resistance again. Replace the plug unless it is within the limited value.
Limit: Minimum 10 MΩ