Kia Clarus/Credos

1995-2001 of release

Repair and car operation

KIA Klarus
1.1. Periodicity of maintenance
+ 2. FE DOHC engines and Т8 DOHC
+ 3. Greasing system
+ 4. Cooling system
+ 5. Power supply system and release
+ 6. Fuel system
- 7. Ignition system
   7.1. Specifications
   7.2. Iskroobrazovaniye check
   7.3. Spark plugs
   7.4. Check of spark plugs
   7.5. High-voltage wires
   7.6. Ignition coil
   7.7. Ignition distributor
   7.8. Search and elimination of malfunctions
+ 8. Coupling
+ 9. Mechanical transmission
+ 10. АКП G4A–EL
+ 11. АКП 50–40 LE
+ 12. Axes and power shafts
+ 13. Steering
+ 14. Wheels and tires
+ 15. Suspension bracket
+ 16. Body
+ 17. Central air
+ 18. Electric equipment
+ 19. Brake system
+ 20. Electric circuits

7.3. Spark plugs



Do not serve a spark plug on the hot engine.


1. Disconnect a wire from the negative plug of the storage battery.
2. Disconnect high-voltage wires.


At a detachment of high-voltage wires from spark plugs pull for a wire tip, instead of for a wire as it can be damaged.

3. The compressed air clear candles that will exclude dirt hit in engine cylinders after a vyvinchivaniye of spark plugs.
4. Turn out a candle, using a candle key.


For an exception of damage of a candle, establish a candle key strictly along a candle axis.


1. Put on a carving of candles the structure interfering a prikhvatyvaniye, or greasing on a molybdenic basis.
2. Screw a spark plug in a head of the block of cylinders.

Moment of an inhaling of a candle: 14,7–22,6 N • m

3. Connect a high-voltage wire to a spark plug.
4. Connect a wire to the negative plug of the storage battery.


1. Turn out a spark plug.
2. Connect a spark plug to a high-voltage wire.
3. Holding a spark plug special пассатижами with the isolated handles, keep a spark plug at arm's length 5–10 mm from "weight".


Do not concern a car body during performance of the following operations.

4. The assistant should turn a cranked shaft of the engine a starter, thus between electrodes of a candle the steady strong iskroobrazovaniye should be observed.


If the spark is absent, replace a spark plug.

5. In the absence of a spark of ignition or if an ignition spark weak, check a condition and correct the following defects:

– in the presence of a deposit clear or replace a spark plug;
– at pollution by oil clear or replace a spark plug;
– at wear or burning out of electrodes replace a spark plug;
– at destruction of a ceramic insulator replace a spark plug;
– at damage of a ring of a spark plug replace a spark plug;
– at violation of an interelectrode gap in a spark plug adjust a gap.
Correction of a gap is carried out by a podgibaniye of a lateral electrode. The central electrode by no means cannot be bent, as it can lead to breakage of an insulator and a candle exit out of operation. For a podgibaniye of a lateral electrode of a candle it is necessary to use the special tool.

Interelectrode gap of a spark plug:
FE DOHC engine: 1,0–1,1 mm
DOHC T8 engine: 0,7–0,8 mm