### Drive Belt

#### REMOVAL AND INSTALLATION

##### 1.6L (GA16DE) Engine

WARNING
If a removed belt is to be reused, be certain to mark the direction of rotation on the belt, this will extend the belt's life.

###### Alternator

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension of the new belt.
8. Tighten the mounting, pivot, and lock bolts.
9. Reconnect the negative battery cable.

###### Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension of the new belt.
8. Tighten the mounting and pivot bolts.
9. Reconnect the negative battery cable.

###### Power Steering

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the drive belt tension.
9. Tighten the mounting, pivot, and lock bolts.
10. Reconnect the negative battery cable.

##### 2.0L (SR20DE) Engine

###### Alternator and Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator/air conditioning compressor drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator and air conditioning compressor pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator with air conditioner compressor — 0.256–0.295 in. (6.5–7.5mm)
   - Alternator without air conditioner compressor — 0.28–0.31 in. (7–8mm)
8. Tighten the mounting, pivot, and lock bolts.
9. Reconnect the negative battery cable.

###### Power Steering

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Power steering pump — 0.138–0.177 in. (3.5–4.5mm)
9. Tighten the mounting, pivot, and lock bolts.
10. Reconnect the negative battery cable.

##### Altima with 2.4L (KA24DE) Engine

###### Alternator and Power Steering

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator and power steering pump — 0.20–0.24 in. (5–6mm)
8. Tighten the alternator adjustment locking bolt to 12–14 ft. lbs. (16–19 Nm) and recheck the drive belt deflection.
9. Tighten the mounting and pivot bolts.
10. Connect the negative battery cable.

###### Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the locknut for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Air conditioner compressor — 0.24–0.28 in. (6–7mm)
8. Tighten the idler pulley locknut on the face of the idler pulley to 24–28 ft. lbs. (32–38 Nm).
9. Tighten the mounting and pivot bolts.
10. Connect the negative battery cable.

##### 3.0L (VE30DE and VG30E) Engines

###### Alternator — with drive belt adjusting bolt

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension of the new belt.
8. Tighten the mounting, pivot, and lock bolts.
9. Reconnect the negative battery cable.

###### Alternator — without drive belt adjusting bolt

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Using a proper tool, pry the component inward to relieve the tension on the drive belt.

   NOTE: Always be careful where using the pry bar not to damage the alternator or surrounding components.

4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - 3.0L (VG30E) engine — 0.24–0.31 in. (6–8mm)
   - 3.0L (VE30DE) engine — 0.256–0.295 in. (6.5–7.5mm)
8. Tighten the mounting and pivot bolts.
9. Reconnect the negative battery cable.

###### Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - 3.0L (VG30E) engine — 0.16–0.24 in. (4–6mm)
   - 3.0L (VE30DE) engine — 0.20–0.24 in. (5–6mm)
8. Tighten the mounting and pivot bolts.
9. Reconnect the negative battery cable.

###### Power Steering — with adjustable idler pulley

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - 3.0L (VG30E) engine — 0.31–0.39 in. (8–10mm)
   - 3.0L (VE30DE) engine — 0.256–0.295 in. (6.5–7.5mm)
8. Tighten the mounting, pivot, and lock bolts.
9. Reconnect the negative battery cable.

###### Power Steering — with non-adjustable idler pulley

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the drive belt tension.
9. Tighten the mounting, pivot, and lock bolts.
10. Reconnect the negative battery cable.

##### 3.0L (VQ30DE) Engine

###### Air Conditioning Compressor and Alternator

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator with air conditioner compressor — 0.150–0.161 in. (3.8–4.1mm)
   - Alternator without air conditioner compressor — 0.228–0.244 in. (5.8–6.2mm)
8. Tighten the mounting nut to 19–24 ft. lbs. (25–32 Nm).
9. Connect the negative battery cable.

###### Power Steering

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator with air conditioner compressor — 0.256–0.276 in. (6.5–7mm)
9. Tighten the mounting nut to 12–15 ft. lbs. (16–15 Nm). Also tighten the pivot bolts.
10. Connect the negative battery cable.

##### 240SX with 2.4L (KA24DE) Engine

###### Alternator

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator — 0.240–0.280 in. (6–7mm)
8. Tighten the mounting, pivot, and lock bolts.
9. Connect the negative battery cable.

###### Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the locknut for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Air conditioner compressor — 0.256–0.295 in. (6.5–7.5mm)
8. Tighten the idler pulley locknut.
9. Connect the negative battery cable.

###### Power Steering

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Power steering pump without SUPER HICAS — 0.256–0.295 in. (6.5–7.5mm)
   - Power steering pump with SUPER HICAS — 0.217–0.256 in. (5.5–6.5mm)
9. Tighten the mounting, pivot, and lock bolts.
10. Connect the negative battery cable.

##### 1993–94 3.0L (VG30DE and VG30DETT) Engines

###### Alternator — with drive belt adjusting bolt

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Loosen the locking bolt on the alternator adjusting bolt. The alternator adjusting bolt will loosen and tighten the alternator drive belt tension.
4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Alternator — 0.256–0.295 in. (6.5–7.5mm)
8. Tighten the mounting, pivot, and lock bolts.
9. Connect the negative battery cable.

###### Alternator — without drive belt adjusting bolt

1. Disconnect the negative battery cable.
2. Loosen the pivot and mounting bolts of the alternator.
3. Using a proper tool, pry the component inward to relieve the tension on the drive belt.

   NOTE: Always be careful where using the pry bar not to damage the alternator or surrounding components.

4. When there is enough slack in the belt, remove the belt from the alternator pulley.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension of the new belt.
8. Tighten the mounting and pivot bolts.
9. Connect the negative battery cable.

###### Air Conditioning Compressor

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Power steering pump without SUPER HICAS — 0.28–0.31 in. (7–8mm)
8. Tighten the idler pulley locknut.
9. Tighten the mounting and pivot bolts.
10. Connect the negative battery cable.

###### Power Steering — with adjustment bolt

1. Disconnect the negative battery cable.
2. Loosen the power steering oil pump mounting and pivot bolts.
3. Loosen the drive belt adjustment locking bolt. The drive belt adjustment bolt is located on the power steering oil pump. The drive belt adjustment bolt will move the power steering oil pump and increase or decrease belt tension.
4. Turn the power steering oil pump adjusting bolt until there is enough slack in the drive belt to remove it.
5. Remove the drive belt from around the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After the drive belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Power steering pump without turbocharger — 0.413–0.453 in. (10.5–11.5mm)
   - Power steering pump with turbocharger — 0.35–0.39 in. (9–10mm)
9. Tighten the mounting, pivot, and lock bolts.
10. Connect the negative battery cable.

###### Power Steering — with adjustable idler pulley

1. Disconnect the negative battery cable.
2. Loosen the lock bolt for the idler pulley.
3. Loosen the idler pulley adjusting bolt. When the idler pulley adjustment bolt is loosened, the drive belt tension will slowly be released.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. After the new belt is installed correctly, adjust the tension by applying 22 lbs. (98 N) of pressure to the belt, then measuring the deflection. Compare the deflection with the following specifications:
   - Power steering pump without turbocharger — 0.413–0.453 in. (10.5–11.5mm)
   - Power steering pump with turbocharger — 0.35–0.39 in. (9–10mm)
8. Tighten the mounting, pivot, and lock bolts.
9. Connect the negative battery cable.

##### 1995–97 3.0L (VG30DETT and VG30DE) Engines

Belt deflection is measured by applying pressure on the drive belt at the mid points between the component pulleys. Deflection is the distance the belt moves when pressure is applied at the midpoint. Always measure belt deflection when the drive belts are cold.

###### Alternator

1. Disconnect the negative battery cable.
2. Loosen the pivot mounting bolt of the alternator.
3. Loosen the locknut on the alternator adjusting bolt.
4. Turn the alternator adjusting bolt to loosen the drive belt.
5. Remove the alternator drive belt from the pulleys.

   To install:

6. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
7. Correctly route the belt around the pulleys.
8. After new belt is installed correctly, adjust the tension of the new belt.
9. Tighten the alternator adjustment locknut to 12–15 ft. lbs. (16–21 Nm) and check the drive belt deflection.
10. Tighten the alternator pivot and mounting bolts.
11. Apply a pushing force of 22 lb. (98 N) to the alternator belt. The belt deflection should be 0.28–0.31 in. (7–8mm) for used belts or 0.256–0.295 in. (6.5–7.5mm) for new belts.
12. After all the drive belts have been installed, run the engine and recheck the drive belt deflection.

###### Power Steering

The belt tension is adjusted with an adjusting bolt. The adjusting bolt is located on the power steering oil pump.

1. Loosen the power steering oil pump mounting(pivot) bolts.
2. Loosen the drive belt adjustment locking nut.
3. Turn the power steering oil pump adjusting bolt until the drive belt tension has loosened.
4. Remove the power steering drive belt from the pulley and remove the belt from the vehicle.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Install the power steering belt around the crankshaft and power steering pump pulley.
7. Turn the power steering oil pump adjusting bolt until the desired drive belt tension is achieved.
8. Tighten the adjusting bolt locknut to 12–15 ft. lbs. (16–21 Nm).
9. Tighten the power steering oil pump mounting and pivot bolts.
10. Apply a pushing force of 22 lb. (98 N) to the power steering belt. The belt deflection should be 0.472–0.531 in. (12–13.5mm) for used belts or 0.413–0.453 in. (10.5–11.5mm) for new belts.
11. Reconnect the negative battery cable.
12. After all the drive belts have been installed, run the engine and recheck the drive belt deflection.

###### Air Conditioning Compressor

The idler pulley is the smallest of all the pulleys. There is a bolt, at the top of the slotted bracket holding the idler pulley, which is used to either raise or lower the pulley.

1. Disconnect the negative battery cable.
2. Loosen the locknut in the face of the idler pulley.
3. Loosen the idler pulley by turning the adjusting bolt on the idler pulley.
4. When there is enough slack in the belt, remove the belt from the pulleys.

   To install:

5. Verify that the new belt and the old belt have the same length and width. These measurements must be the same or problems will occur when the new belt is adjusted.
6. Correctly route the belt around the pulleys.
7. Turn the air conditioner belt adjusting bolt until the desired drive belt tension is achieved.
8. After adjusting the belt tension, tighten the locknut on the face of the idler pulley to 23 ft. lbs. (31 Nm).
9. Apply a pushing force of 22 lb. (98 N) to the air conditioning compressor belt. The belt deflection should be 0.31–0.35 in. (8–9mm) for used belts or 0.28–0.31 in. (7–8mm) for new belts.
10. After all the drive belts have been installed, run the engine and recheck the drive belt deflection.