Component Tests and General Diagnostics

COMPRESSOR CLUTCH

NOTE:
- Compressor is a 5-vane rotary type. When trouble occurs, replace compressor as a single unit.
- Compressor clutch trouble is often caused by clutch slippage and noise. Check and take corrective measures, as required.




1. Remove belt cover.




2. Check that clearance between drive plate and pulley over the entire perimeter is within specifications.

Clearance:
0.45 ± 0.15 mm (0.0177 ± 0.0059 in)

3. Check that voltage applied to magnetic coil is at least 10.5 volts.
4. When noise is noted, check that it originates in either compressor or pulley bearing.