Section 12-03B: Compressor and Clutch, FS-10
1996 F-Series and Bronco Workshop Manual
ADJUSTMENTS

A/C Clutch Air Gap

 
SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionTool Number
Spanner WrenchT70P-4067-A
Compressor Clutch Holding ToolT94P-19703-AH

Before disassembling A/C compressor (19703) for repair, it is important to check the A/C clutch air gap. This will help determine if the A/C clutch (2884) is not engaging, or if the A/C compressor is failing internally.

  1. Check A/C clutch air gap between clutch hub and A/C clutch pulley (2E884) 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 A/C clutch pulley.





  1. NOTE: If desired gap is not attainable with the available shims, clutch hub and A/C clutch 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.

  1. Use Spanner Wrench T70P-4067-A (diesel engine) or Compressor Clutch Holding Tool T94P-19703-AH (gas engine) to hold the A/C clutch in position while removing the clutch bolt.



    Gasoline Engine






    Diesel Engine




  1. Pull the A/C clutch and shims from the A/C compressor shaft. If the A/C clutch cannot be removed, screw the clutch bolt into the clutch pulley hub to force the A/C clutch from the shaft.





  1. Start by placing the smallest nominal thickness shim inside the A/C clutch spline opening and slide the A/C clutch onto the end of the A/C compressor shaft.

  1.  CAUTION: Do not use air tools to tighten the bolt.

    Install the clutch bolt into the end of the compressor shaft. Use Spanner Wrench T70P-4067-A (diesel engine) or Compressor Clutch Holding Tool T94P-19703-AH (gas engine) to hold the A/C clutch and hub in position while tightening the clutch bolt. Tighten the A/C clutch bolt to 11-13 Nm (8-10 lb-ft).

  1. Recheck 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 A/C clutch pulley.





  1. 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.