Compressor Clutch: Service and Repair

REMOVAL
1. Remove the clutch hub retaining bolt.

Removing Clutch Hub With 8 mm Bolt:

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

Clutch Exploded View:

3. Remove the pulley retaining snap ring.
4. Pull the pulley and the bearing assembly from the compressor.

INSTALLATION
1. Clean the pulley bearing surface of the compressor head to remove any dirt or corrosion.
2. Install the pulley and the bearing assembly on the compressor.

NOTE: 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. Apply a thin film of white grease to the splined surface of the compressor shaft.
5. Place one nominal thickness spacer shim inside the hub spline opening and slide the hub on the end of the compressor shaft.
6. Thread a new hub retaining bolt into the end of the compressor shaft. Tighten the hub retaining bolt to 11-13 Nm (8-10 ft lb).

NOTE: Do not use air tools.

Clutch Air Gap Check:

7. Check the clutch air gap between the clutch hub and the pulley mating surfaces with a feeler gauge. The air gap should be between 0.35 and 0.65 mm (0.014 and 0.026 inch). Check at three locations equally spaced around the pulley.
8. If the clutch air gap is not within 0.35 to 0.65 mm (0.014 to 0.026 inch), repeat Steps 4, 5, and 6 with the various thickness shims until the air gap is between the specified limits.