Check and cleaning of spark plugs. Hyundai Matrix (from 2002 to 2006 of release)
Hyundai Matrix service from 2002 to 2006 of release
1. Operation and car maintenance
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
7.1. Power supply system
7.1.1. General information
7.1.2. Ignition system
7.1.3. Check of the lock of ignition
7.1.4. Check of coils of ignition
7.1.5. Check and cleaning of spark plugs
7.1.6. Engine diagnostics on a condition of spark plugs
7.1.7. Removal and installation of the coil of ignition
7.2. Charging system
7.3. Sitema of start
7.4. Anticreeping system
7.5. Tables
8. Body
9. Electric equipment schemes


7.1.5. Check and cleaning of spark plugs

Disconnect candle wires of a high voltage from spark plugs.

At a detachment of a candle wire of a high voltage pull for an insulating cap, instead of for a wire. Otherwise the wire can be damaged.

By means of a head for removal of candles turn out spark plugs from a head of cylinders.

Be careful, do not allow dirt hit in engine cylinders through an opening for a spark plug.

Check spark plugs on lack of the defects listed below.
1. Insulator damage.
2. Burning out of electrodes.
3. Deposit.
4. Damage or crack of a sealing washer.
5. A condition of enamel of an insulator on the candle end.

Fig. 7.4. Gap check between spark plug electrodes

Check a gap between spark plug electrodes by means of wire щупа and if necessary adjust its (fig. 7.4).
Nominal rate: 1,0–1,1 mm.

Fig. 7.5. Installation of spark plugs

Establish spark plugs and tighten them the nominal moment of an inhaling (fig. 7.5).
If candles are tightened by the moment exceeding nominal rate, damage of a carving to a head of cylinders is possible.
Inhaling moment: 20–30 N · m.

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7.1.4. Check of coils of ignition
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7.1.6. Engine diagnostics on a condition of spark plugs