Note. To adjust the tension of the water pump drive belt, you must use the Tronic 105.6 device.
Removal
- Place the car on a lift and lift the front wheels.
- Disconnect the cable from the negative terminal of the battery.
- Disconnect the injection system control unit, remove the 2 bolts and remove it.
- Raise the car
- Remove the right front wheel and protective fender liner.
Vehicles without air conditioning system
- Loosen the generator mounting bolts.
- By unscrewing the adjusting nut, loosen the belt tension.
- Remove the water pump drive belt.
Vehicles with air conditioning system
- Loosen the belt tension by unscrewing the tension roller with a 7 mm hex key (fixing bolt in the center of the roller) and holding the roller with a 22 mm open-end wrench (pic. 1.90).
- Remove the water pump drive belt.
Pic. 1.90. Unscrewing the bolt securing the tension roller of the water pump drive belt on cars with an air conditioning system
Installation
- Strictly follow the belt tensioning procedure below. It should be remembered that once the belt is loose, it must be replaced with a new one.
Vehicles with air conditioning system
- Cold (ambient temperature), install a new belt on the pulleys in accordance with the diagram shown in Figure 1.91.
Pic. 1.91. Installation diagram for engine accessory drive belt F on vehicles without air conditioning system: 1 - crankshaft pulley; 2 - water pump pulley; 3 - power steering pump pulley; 4 - generator pulley; T - installation point of the device sensor for checking tension
- Install the sensor of the Tronic 105.6 device in the location indicated by the arrow in Figure 1.91.
- Turn the sensor wheel until it clicks.
- By turning the tension roller, tension the belt until the value 109±3 units appears on the display of the Tronic 105.6 device.
- In this position, tighten the tension roller bolt.
- Rotate the crankshaft 3 turns.
- Make sure that the belt tension value has not changed, otherwise repeat the belt tension adjustment.
- Remove the belt tension gauge sensor
- Connect the wire to the negative terminal of the battery.
Vehicles without air conditioning system
- Cold (ambient temperature), install a new belt on the pulleys in accordance with the diagram shown in Figure 1.92.
Pic. 1.92. Installation diagram for engine accessory drive belt F on vehicles with air conditioning system: 1 - crankshaft pulley; 2 - water pump pulley; 3 - power steering pump pulley; 4 - generator pulley; 5 - air conditioning compressor pulley; 6 - tension roller; T - installation point of the device sensor for checking tension
- Install the sensor of the Tronic 105.6 device in the location indicated by the arrow in Figure 1.92.
- Turn the sensor wheel until it clicks.
- Rotate the belt tension adjustment nut until the value 107±3 units appears on the display of the Tronic 105.6 device.
- In this position, tighten the generator mounting bolt.
- Rotate the crankshaft 3 turns.
- Make sure that the belt tension value has not changed, otherwise repeat the belt tension adjustment.
- Remove the belt tension gauge sensor.
- Connect the wire to the negative terminal of the battery.