- Flathead screwdriver
- Socket set
- Wrench set
- Timing light (optional)
Instructions:
1. Disconnect Battery:
- To ensure safety, disconnect the negative terminal of the battery before starting the procedure.
2. Remove Radiator Fan Shroud:
- Locate the radiator fan shroud in front of the radiator and remove it. This may involve removing a few bolts.
3. Remove Radiator Top Hose:
- Disconnect the radiator top hose to gain better access to the timing belt. Clamp off the hose to prevent coolant loss.
4. Remove Accessory Belts:
- Remove any accessory belts, such as the power steering belt and air conditioning belt, that may be obstructing access to the timing belt cover.
5. Remove Timing Belt Cover:
- Locate the timing belt cover and remove it by unscrewing the mounting bolts.
6. Align Engine Crankshaft:
- Using a wrench on the crankshaft bolt, manually rotate the engine clockwise until the alignment mark on the crankshaft pulley is aligned with the timing mark on the timing belt cover.
7. Loosen Timing Belt Tensioner:
- Locate the timing belt tensioner and loosen the adjustment bolt to relieve the tension on the timing belt.
8. Remove Timing Belt:
- Once the tension is released, remove the timing belt from around the camshaft and crankshaft pulleys.
9. Install New Timing Belt:
- Before installing the new timing belt, ensure that all alignment marks are aligned. Place the new timing belt around the camshaft and crankshaft pulleys, making sure that all the teeth are engaged with the slots on the pulleys.
10. Tighten Timing Belt Tensioner:
- Tighten the timing belt tensioner bolt according to the specified torque. This is crucial to ensure proper tension and prevent belt slippage.
11. Reinstall Timing Belt Cover:
- Reinstall the timing belt cover by securing it with the mounting bolts that were removed earlier.
12. Reinstall Radiator Top Hose:
- Reattach the radiator top hose that was removed earlier.
13. Reinstall Accessory Belts:
- Reinstall the accessory belts that you removed earlier.
14. Reconnect Battery:
- Reconnect the negative terminal of the battery.
15. Check Timing:
- Using a timing light (if available), perform a timing check to ensure that the timing marks are properly aligned.
By following these steps, you can successfully remove the timing belt on your 1994 Nissan Pathfinder.
