4- and 6-cylinder in-line engines
Removal
1. Turn off the ignition.
2. Remove the air filter cross pipe.
Fig. 5.38. Removing the spark plug cover: 1 – lid; 2, 3 – pin connector
3. Remove cover 1 (Fig. 5.38) of the spark plugs.
Note: The drawing is for a 6-cylinder in-line engine.
4. Disconnect the contact connectors from the ignition coils 3.
Fig. 5.39. Ignition coil: 1, 3 – connectors; 2 – guide pin; 4 – ignition coil
5. Disconnect the 2 high voltage wire connectors.
Note: In Fig. 5.39, connector 3 of ignition coil 4 is connected to the spark plug. Connector 1 is connected to the spark plug via a high-tension wire. Guide pin 2 connects the ignition coil to ground.
Fig. 5.40. Wiring diagram of ignition coils of a 6-cylinder in-line engine. The numbers indicate the tips of spark plugs from cylinders 1 to 6; B - wires
Fig. 5.40 shows the connection diagram of the ignition coils with spark plugs for a 6-cylinder in-line engine.
6. Remove the ignition coils by moving them upwards.
Installation
7. Install the ignition coils in their original places and connect the wires in accordance with Fig. 5.40.
8. Replace the spark plug cover.
9. Install the air filter cross pipe.
V6 Engine
Removal
1. Turn off the ignition.
2. Remove the mass air flow sensor together with the intake pipe.
Fig. 5.41. Removing the ignition coil on a V6 engine: 1, 3 – pin connector; 2 – screw; 4 – mounting position; 5 – ignition coil; 6 – spark plug
Disconnect both high-voltage wire connectors from ignition coil 5 (Fig. 5.41).
Note: Pay attention to the installation position 4 marked on the ignition coil and on the engine. The spark plug tips are marked because there are two spark plugs on each cylinder. The connector "a" on the ignition coil must be connected to the tip "K" of the spark plug. Connector "b" - to the tip "G" of the spark plug.
4. Disconnect contact connector 3 from the ignition coil.
5. Unscrew screw 2 and remove the ignition coil.
Installation
6. Install the ignition coil and tighten screw 2.
7. Connect the connector 1.
8. Connect the ignition coil connectors 1.
Attention! Do not mix up the contact connectors, they have marks. Connector "a" on the ignition coil is connected to tip "K" of the spark plug, connector "b" - to tip "G" of the spark plug.
9. Install the mass air flow sensor with the intake pipe.
V8 Engine
Removal
1. Turn off the ignition.
Fig. 5.42. Removing the ignition coil on a V8 engine: 1 – lid; 2 – fastening part; 3 – ignition coil; 4 – spark plug
2. Loosen the mounting bolts and remove covers 1 (Fig. 5.42) from the engine.
3. Disconnect the connectors from the side of each ignition coil.
4. Unscrew the bolts securing part 2.
5. Remove ignition coils 3 from spark plugs 4 by moving them upwards.
Installation
6. Install ignition coils 3 onto spark plugs 4.
7. Tighten the bolts securing part 2.
8. Connect the contact connectors to each coil.
9. Fasten covers 1 to the engine.