Table of contents: Checking the V-belt tension ↓ Replacing the V-belt ↓
Belt placement
1. Adjusting screw (for servo pump V-belt) 2. Lock nut 10 N·m (for servo pump adjusting screw, tightening torque: 25 N·m.) 3. Coolant pump pulley 4. Servo pump (power steering) 5. Generator 6. Compressor (for air conditioner) 7. Idler pulley 8. Crankshaft pulley 9. Lock nut, 30 Nm (for intermediate pulley) 10. Adjusting screw (for air conditioning compressor V-belt) 11. Lock nut, 20 N·m (for alternator adjusting screw, tightening torque: 25 N·m.) 12. Adjusting screw (for alternator V-belt)
If the old belt is to be installed, it should be checked for wear and damage. If its sides are frayed, there are cracks and places of breaks, the V-belt should be replaced in any case. When installing the belt, make sure that it fits correctly on all pulleys.
Checking the V-belt tension
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 the Belt Location Fig.).
2. Measure the indentation value and compare it with the reference value. Press the belt with a force of 100 N (10 kg). This corresponds to roughly strong pressure with your thumb. If necessary, pull the belt down with a spring dynamometer.
3. If the control value is exceeded, tighten the belt.
Replacing the V-belt
1. Loosen the lock nut.
2. Turn the adjusting screw until the belt can be removed.
3. Remove the V-belt.
4. Place a new V-belt and adjust the bolt to a specified tension value.
5. Tighten the lock nut.
| V-belt condition | Pre-owned | New | |
| V-belt for | Control value | Adjustment value | Adjustment value |
| Cooling system pump with servo pump | 8 mm | 5 – 7 mm | 4 – 6 mm |
| Cooling system pump without servo pump | 8 mm | 8 mm | 6 mm |
| Air conditioning compressor | 17 mm | 11 – 13 mm | 9 – 11 mm |
| Generator | 17 mm | 10 – 12 mm | 8 – 10 mm |
(See the original on the resource: «Nissanbook.ru»)