Diesel Data: Automotive Repair

Drive Belt Replacement (Cooling Fan)

Removal Procedure

Caution: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.





2. Loosen the adjusting bolt (1) and the pivot bolt (3).
3. Remove the tension on the fan belt by rotating the tension bolt (2) counterclockwise.





4. Remove the 4 fan nuts (1). Use a second wrench to hold the fan shaft.

Important: Do not damage the radiator when removing the fan.

5. Detach the fan from the pulley hub and remove the fan belt.

Installation Procedure





1. Install the fan belt while holding the fan away from the pulley hub.
2. Install the fan to the hub.

Notice: Refer to Fastener Notice in Service Precautions.

3. Install the 4 fan nuts. Use a second wrench to hold the fan shaft.
^ Tighten the fan nuts to 11 Nm (97 inch lbs.).
4. Install the fan belt properly on the pulleys.
5. Turn the tension bolt (2) clockwise in order to obtain the specified belt deflection (4) under 10 kg (22 lbs.) of force.
New Belt Deflection 4 - 5 mm (0.16 - 0.20 inch)
Used Belt Deflection 5 - 7 mm (0.20 - 0.27 inch)

6. Tighten the adjusting bolt (1) and the pivot bolt (3) while holding the correct tension on the fan belt.
^ Tighten the bolts to 45 Nm (33 ft. lbs.).
7. Connect the negative battery cable.
^ Tighten the battery cable bolt to 15 Nm (11 ft. lbs.).