Note. When disconnecting the high voltage spark plug wire, pull on the insulating cap, not the wire itself. Otherwise, the wire may be damaged.
Using a spark plug socket, remove the spark plugs from the cylinder head.
Attention! Be careful not to allow dirt to enter the engine cylinders through the spark plug hole.
Check the spark plugs for the defects listed below.
- 1. Damage to the insulator.
- 2. Burnout of electrodes.
- 3. Nagara.
- 4. Damaged or cracked sealing washer.
- 5. The condition of the insulator enamel at the end of the candle.
Pic. 7.4. Checking the gap between the electrodes of the spark plug
Check the gap between the spark plug electrodes with a feeler gauge and adjust if necessary (pic. 7.4).
Nominal value: 1.0 - 1.1 mm.
Pic. 7.5. Installing spark plugs
Install spark plugs and tighten to rated torque (pic. 7.5).
If the spark plugs are tightened to a torque greater than the nominal value, the threads in the cylinder head may be damaged.
Tightening torque: 20–30 Nm.