Compressor Clutch: Adjustments

A/C Compressor Clutch Air Gap

SPECIAL SERVICE TOOL(S) REQUIRED






Before disassernbling A/C compressor for repair. it is important to check the A/C clutch air gap. This will help determine if the clutch is not engaging, or if the A/C compressor is failing internally.

1. Check A/C clutch air gap between clutch hub and pulley mating surfaces with a feeler gauge. The air gap should be between 0.35 and 0.85mm (0.014 and 0.033 inch). Check at three locations equally spaced around the pulley.









2. NOTE: if desired gap is not affainable with the available shims, clutch disc and pulley should be inspected for wear or damage. Replace as required.

If A/C clutch air gap is not within specification, use the following steps to adjust air gap.

3. Use Spanner Wrench T7OP-4067-A to hold the A/C clutch disc and hub assembly in position while removing the clutch belt.









4. Pull the A/C dutch and shims from the A/C compressor shaft. If the A/C compressor clutch disc and hub assssnbiy cannot be removed, screw an 8mm bolt into the clutch pulley hub to force the A/C compressor clutch from the shaft.











5. Start by placing the nominal thickness shim on the end of the splined shaft and slide the A/C compressor clutch disc and hub assembly onto the end of the A/C compressor shaft.

6. CAUTION: Do not use air tools to tighten the boft.

Install the clutch bolt into the end of the compressor shaft. Use Spanner Wrench T7OP-4067-A to hold the A/C dutch disc and hub assembly in position while tightening the dutch bolt. Tighten the A/C clutch bolt to 11-14 N.m (8-10 lb-ft).

7. Recheck A/C clutch air gap between clutch disc and pulley mating surfaces with a feeler gauge. The air gap shculd be between 0.35 and 0.85mm (0.014 and 0.033 inch). Check at three locations equally spaced around the pulley.

8. If A/C clutch air gap is not within specification, repeat Steps 3 through 7. Install the correct shim to achieve the desired air gap.


7. Recheck A/C clutch air gap between clutch disc and pulley mating surfaces with a feeler gauge. The air gap shculd be between 0.35 and 0.85mm (0.014 and 0.033 inch). Check at three locations equally spaced around the pulley.






8. If A/C clutch air gap is not within specification, repeat Steps 3 through 7. Install the correct shim to achieve the desired air gap.