GMC 1989 Light Duty Truck Repair Manual page 54

1B2-10 V5 AIR CONDITIONING COMPRESSOR
A. Seal
R e ta in e r Ring
J 349 9 2
Figure 21— Removing or Installing the Shaft Seal
Retainer
• Dip the new O-ring seal in clean 525 viscosity refriger­
ant oil.
1. J 34614 onto the shaft.
2. O-ring seal using J 33011 (figure 24).
• Insert J 33011 into the compressor neck until
the installer " bottom s."
• Lower the movable slide of J 33011, releasing
the O-ring seal into the lower groove.
• Rotate J 33011 to seat the O-ring seal and
remove J 33011.
3. Shaft lip seal using J 23128-A (figure 22).
• Dip the shaft lip seal in clean 525 viscosity
refrigerant oil and install the shaft lip seal on J
23128-A.
• Bottom the shaft lip seal into the compressor
neck area using J 23128-A.
4. Shaft seal retainer ring using J 5403 (figure 21).
• Install the flat side of the shaft seal retainer ring
against the lip seal.
• Remove J 34614.
Important
Leak test the compressor.
Refer to " Leak T esting."
i g i Clean
• Shaft and inside of the com pressor neck area.
5. Clutch plate and hub assem bly (22).
FRONT HEAD SEAL, REAR
HEAD GASKET, REAR VALVE
PLATE, SUCTION REED PLATE
AND REAR HEAD SEAL
REPLACEMENT
Remove or Disconnect (Figures 3 and 25)
1. Clutch plate and hub assembly (22).
J 540 3
F-06457
2. Pulley (26) and bearing (25) assembly.
3. Clutch coil assembly (27).
4. Shaft seal (29).
5. Through bolts (31).
6. Front head (33) from the shaft and cylinder body (38).
• Using a wood block, tap around the edge of the
front head (33) to remove.