SPARK PLUG INSPECTION

BHE011801009W05

Specification

^*1 :

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

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}

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.

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)

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}]