C 1500 Truck 2WD V6-262 4.3L VIN Z (1992)
Compressor Shaft Seal
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Seals should not be re-used. Always use a new specification service seal kit. Be sure that the seal to be installed is not scratched or damaged in
any way. Make sure that the seal is free of lint and dirt that could damage the seal surface or prevent sealing.
Install or Connect
1. Dip the new seal O-ring in clean 525 viscosity refrigerant oil and assemble onto O-ring installer J 33011.
2. Insert the O-ring installer J 33011 into the compressor neck until the installer "bottoms." Lower the moveable slide of the O-ring installer to
release the O-ring into the seal O-ring lower groove. (The compressor neck top groove is for the shaft seal retainer ring.) Rotate the installer to seat
the O-ring and remove the installer.
Lip Seal Installed On Seal Protector
3. Attach the seal to the seal remover and installer J 23128-A and dip the seal in clean 525 viscosity refrigerant oil to coat the seal. Install seal
protector J 34614 in the seal, place over shaft and push seal in place with a rotary motion.
4. Install the new seal retainer ring with its flat side against the seal, using snap-ring pliers J 5403. Use the sleeve from O-ring installer J 33011 to
press in on the seal retainer ring so that it snaps into its groove.
5. To leak test, install compressor leak test fixture J 9625-A on rear head of compressor and connect gage charging lines using J 38100-C Refrigerant
Recovery System. Pressurize suction and high-side of compressor with Refrigerant 12 vapor to drum pressure. Temporarily install the shaft nut
and, with the compressor in horizontal position. rotate the compressor shaft in normal direction of rotation several turns by hand. Leak test the seal
area and correct any leak found. Recover refrigerant. Remove shaft nut.
6. Remove any excess oil resulting from installing the new seal parts from the shaft and inside the compressor neck.
7. Install the clutch plate and hub assembly as described in minor repair procedures.
8. Reinstall the compressor, belt and tighten bracket.
9. Evacuate and charge the refrigerant system.
