Compressor Pulley: Service and Repair

Compressor Components:

CLUTCH HUB AND PULLEY

DISASSEMBLY




1. Remove the clutch hub retaining bolt with the aid of a wrench.




2. Pull the clutch hub and shims from the compressor shaft. If the hub cannot be pulled from the compressor shaft, screw an 8 mm bolt into the shaft hole of the clutch hub to force the hub from the shaft.




3. Remove the pulley retaining snap ring.




4. Pull the pulley and bearing assembly from the compressor.

REASSEMBLY




1. Clean the pulley bearing surface of the compressor head to remove any dirt or corrosion.
2. Install the pulley and bearing assembly on the compressor. The bearing is a slip fit on the compressor head and, if properly aligned, should slip on the compressor head.




3. Install the pulley retaining snap ring with the bevel side of the snap ring out.




4. Place one norminal thickness spacer shim inside the hub spline opening and slide the hub on the end of the compressor shaft.




5. Thread a new hub retaining bolt into the end of the compressor shaft. Tighten the hub retaining bolt.

Tightening torque
10.2 - 15.3 Nm (102 - 153 kg.cm, 7.5 - 11.3 lb.ft)

NOTE: Do not use air tools.

6. Check the clutch air gap between the clutch hub and the pulley mating surfaces with a feeler gauge. The air gap should be as follows:

Standard value: 0.35 - 0.75 mm (0.0138 - 0.0104 in.)

Check at three locations equally spaced around the pulley.




7. If the clutch air gap is not within the dimensions specified above, repeat steps 4 through 6 with various shim thicknesses until the air gap is between the specified limits.