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Home >> Geo >> 1990 >> Storm L4-1600cc 1.6L DOHC >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Service and Repair >> Minor Compressor Repair Procedures
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Minor Compressor Repair Procedures

Remove or Disconnect

Tools Required:
J 38874 Drive Plate Holding Tool and Puller
J 8433 Heavy Duty Pulley Puller
J 38424 Pulley Puller Adapter
J 33025 Clutch Coil Puller Legs

1. Battery negative (-) cable.
2. Compressor from vehicle.
^ Mount compressor into vise.
^ Install a J 38874 drive plate holding tool to the drive plate.

Removing Drive Plate Retaining Bolt:





3. Drive plate retaining bolt. Use the J 38874 drive plate holding tool to hold the drive plate to ease retaining bolt removal.

Removing Drive Plate:





^ Install the drive plate puller to the J 38874 drive plate holding tool and remove the drive plate.
4. Drive plate shim(s).

Removing Snap Ring:





5. Snap ring retaining drive pulley.

Removing Drive Pulley:





^ Using a J 8433 heavy duty pulley puller, J 33025 clutch coil puller legs and a J 38424 pulley puller adapter, remove drive pulley.

Removing Lead Wire Retaining Clip:





6. Lead wire retaining clip.
7. Magnetic clutch electrical connector.

Removing Field Coil:





8. Three screws and field coil from compressor.

Inspect
^ Drive plate frictional surface for signs of damage due to excessive heat. If the drive plate is damaged, replace the entire magnetic clutch assembly.
^ Drive pulley frictional surface for excessive grooving due to slippage. If the drive pulley is damaged, replace the entire magnetic clutch assembly.
^ Field coil for cracked insulation ora loose connection. If the field coil is damaged, replace the entire magnetic clutch assembly.

Clean
^ Drive pulley frictional surface before installation.

Install or Connect

Tools Required:
J 38873 Drive Pulley Installer
J 38874 Drive Plate Holding Tool and Puller

Installing Field Coil:





1. Field coil to compressor. Align the notch on the field coil to the compressor.
2. Three screws securing field coil.

Tighten
^ Field coil retaining screws to 5 N.m (44 lb. in.).

3. Magnetic clutch electrical connector.
4. Lead wire retaining clip.

Installing Drive Pulley:





5. Drive pulley using a J 38873 drive pulley installer.
6. Snap ring securing drive pulley.
7. Drive plate shim(s).

Installing Drive Plate:





8. Drive plate to drive pulley using the J 38873 drive pulley installer.

NOTICE: Make sure that the drive plate splines are properly aligned with the compressor drive shaft before drawing drive plate onto shaft.

^ Install a J 38874 drive plate holding tool to the drive pulley.

Installing Drive Plate Retaining Bolt:





9. Drive plate retaining bolt. Use the J 38874 drive plate holding tool to hold the drive plate stationary.

Tighten
^ Drive plate retaining bolt to 14 N.m (10 lb. ft.).

Inspect
^ Drive pulley for proper rotation.

Measure

Tool Required:
J 26900-8 Thickness Gage

Measuring Drive Plate Clearance:





^ Drive plate-to-drive pulley clearance using a J 26900-8 thickness gage. Standard clearance is 0.3 to 0.6 mm (0.01 to 0.02-inch). If clearance is less than 0.3 mm (0.01-inch), install adjusting shims as required to bring clearance into specification. Shims are available in 0.1 mm (0.0039-inch), 0.3 mm (0.01-inch) and 0.5 mm (0.0197-inch) sizes.

10. Compressor to vehicle.
11. Battery negative (-) cable.






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