SPARK PLUG INSPECTION


BHE011801009W05

Specification

Item

Specification

Type
NGK
Australian specs.

Leading side

RE6A-L*1, RE7A-L,
Trailing side
RE9B-T
European (L.H.D. U.K.) specs
Leading side
RE7A-L*1, RE8A-L
Trailing side
RE9B-T

*1 :
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 wire type plug gap gauge when inspecting the plug gap.

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

• If it is more than the maximum specification, replace the spark plug.
Standard plug gap
Australian specs.: 1.15-1.25 mm {0.046-0.049 in}
European (L.H.D. U.K.) specs.: 1.05-1.15 mm {0.041-0.045 in}
Maximum plug gap
Leading side: 1.5 mm {0.059 in}
Trailing side: 1.4 mm {0.055 in}

Cleaning

Caution
• To avoid possible damage to the tip, do not use a wire brush to clean the plug.
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:

• If there is any malfunction, 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.

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