Compressor Clutch: Adjustments
A/C CLUTCH AIR GAP1. Set the A/C compressor on a level surface.
2. Check the resistance between the A/C clutch field coil electrical connector and a ground with Rotunda 73 Digital Multimeter 105-R0051 or equivalent. The resistance should be approximately 3 to 4 ohms at 20°C (68°F). If the resistance is not as specified, replace the A/C clutch field coil.
3. Set the measuring probe of Dial Indicator/Magnetic Base D78P-4201-B or equivalent, on the clutch hub surface.
4. Apply 12 volts to the A/C clutch field coil electrical connector.
5. The clutch hub to A/C compressor clutch pulley clearance is equal to the difference between the dial indicator readings when applying and removing 12 volts. Clearance should be between 0.4-0.6 mm (0.016-0.024 inch). Add or remove shims as necessary. Refer to the A/C compressor clutch shim selection chart.
A/C COMPRESSOR CLUTCH SHIM SELECTION CHART
Part Number Thickness
Part of F4BZ-19D648-A 0.2 mm (0.008 inch)
Part of F4BZ-19D648A 0.5 mm (0.20 inch)