Belt location
1. Adjusting screw (for servo pump V-belt) 2. Lock nut 10 Nm (for servo pump adjusting screw, tightening torque: 25 Nm.) 3. Coolant pump pulley 4. Servo pump (power steering) 5. Generator 6. Compressor (for air conditioner) 7. Intermediate pulley 8. Crankshaft pulley 9. Lock nut, 30 Nm (for intermediate pulley) 10. Adjusting screw (for A/C compressor V-belt) 11. Lock nut, 20 Nm (for alternator adjusting screw, tightening torque: 25 Nm.) 12. Adjusting screw (for alternator V-belt)
If the old belt will be installed, it should be checked for wear and damage. If its sidewalls are frayed, there are cracks and breaks, the V-belt should in any case be replaced. When installing the belt, make sure that it fits correctly on all pulleys.
Checking the tension of the V-belt
Always check the V-belt tension when the engine is cold.
1. Press the belt with your thumb from above between the pulleys (see "black marks" in fig. Belt location).
2. Measure the amount of punching through and compare with the control value. At the same time, press on the belt with a force of 100 N (10 kg). This corresponds roughly to a strong thumb pressure. If necessary, pull the belt down with a spring dynamometer.
3. If the control value is exceeded, tension the belt.
V-belt replacement
1. Loosen the lock nut.
2. Turn the adjusting screw until the belt can be removed.
3. Remove the V-belt.
4. Put on a new V-belt and adjust with the bolt to the correct tension.
5. Screw in the lock nut.
V-belt condition | Second-hand | New | |
V-belt for | Control value | Adjustment value | Adjustment value |
Coolant pump with servo pump | 8 mm | 5 - 7 mm | 4 - 6 mm |
Coolant pump without servo pump | 8 mm | 8 mm | 6 mm |
air conditioner compressor | 17 mm | 11 - 13 mm | 9 – 11 mm |
Generator | 17 mm | 10 - 12 mm | 8 - 10 mm |