SPARK PLUG INSPECTION [13B-MSP]

id0118f2800500

Spark plug type

Destination

Item

Specification
Europe, Russia
Trailing side
N3H8 18 110 B (RE9B-T)*1
N3Y4 18 110 A (RE9B-T)*1
Leading side
N3J1 18 110 A (RE8C-L)*1
N3Z1 18 110 A (RE8C-L)*1
N3Z2 18 110 A (RE7C-L)*2
Except above
Trailing side
N3H1 18 110 D (RE9B-T)*1
N3Y1 18 110 A (RE9B-T)*1
Leading side
N3H5 18 110 A (RE7C-L)*1
N3Y8 18 110 A (RE7C-L)*1
N3Y9 18 110 A (RE6C-L)*2

*1  :Standard equipment
*2  :Hot type plug: Available only for customers who often drive their car at very low speed which causes the plugs to foul easily.

Plug Gap Inspection

Caution
•  To avoid possible damage to the tip, do not adjust the plug gap.
•  To prevent damaging the tip, use a wire type plug gap gauge when inspecting the plug gap.

1.  Measure the spark plug gap using a wire type plug gap gauge.

•  If it is more than the maximum specification, replace the spark plug.
Standard plug gap
Europe, Russia: 1.05—1.15 mm {0.041—0.045 in}
Except above: 1.15—1.25 mm {0.046—0.049 in}
Maximum plug gap
Trailing side: 1.4 mm {0.055 in}
Leading side: 1.5 mm {0.059 in}


Cleaning

Caution
•  To avoid possible damage to the tip, do not use a wire brush for cleaning.
Note
•  To avoid possible damage to the tip, use gasoline to clean the spark plugs after removing dirt.

Visual inspection

1.  Inspect the following items:

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•  If any of following malfunctions are indicated, replace the spark plug.
―  Insulator breakage
―  Worn electrode
―  Damaged gasket
―  Badly burned insulator (sparking side)


Resistance Inspection

1.  Measure the resistance of the spark plug using a tester as shown in the figure.

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•  If not within the specification, replace the spark plug.
Spark plug resistance
3.0—7.5 kilohms [25°C {77 °F}]