Required

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .



2. If the compressor is on the vehicle, loosen the mounting brackets. Reposition the compressor, if necessary.
3. Remove the Clutch Plate and Hub Assembly.

•	If you are replacing the compressor shaft seal on the CCOT, refer to Compressor Clutch Plate and Hub Assembly .

•	If you are replacing the compressor shaft seal on the VDOT, refer to Compressor Clutch Plate and Hub Assembly Removal .




4. Use the J 4245 in order to remove the shaft seal retainer ring.



5. Clean the inside of the compressor neck area.

•	Clean the O-ring groove surrounding the shaft.

•	Clean the exposed portion of the seal seat.

•	Clean the shaft itself.

•	Any dirt or foreign material that gets into the compressor may cause damage.




6. Fully engage the knurled tangs of the J 23128-A into the recessed portion of the seal.



7. Remove the seal from the compressor. Use a rotary-pulling motion.

•	Discard the seal.

•	Securely tighten the handle by hand. Do not use a wrench or pliers.




8. Use the J 9553-01 in order to remove the O-ring.



9. Inspect the shaft area for any dirt or foreign material.

•	Ensure that the O-ring groove and the compressor neck are free of dirt or foreign material.

•	These areas must be perfectly clean before the installation of new parts.

Tools Required

Notice: Do not reuse the seals. Always use a new specification service kit. Ensure that the new seal is not scratched or damaged in any way. Ensure that the seal is free of lint and dirt. Lint or dirt on the seal may damage the seal surface. Lint or dirt on the seal may prevent sealing.




1. Assemble the new O-ring onto the J 33011 .

•	Dip the new O-ring into clean 525 viscosity refrigerant oil.

•	Use a new specification service kit.

-	Do not damage the lip of the one piece seal.

-	Ensure that the seal seat and the seal lip are free of lint and dirt.




2. Insert the J 33011 into the compressor neck until the Installer touches the bottom of the shaft area.

2.1.	Lower the movable slide of the Installer in order to release the O-ring into the O-ring groove. Ensure that the O-ring is in the lower groove. The top groove is for the retainer ring.

2.2.	Rotate the J 33011 in order to seat the O-ring.




3. Assemble the lip seal to the J 23128-A .

3.1.	Dip the new lip seal in clean 525 viscosity refrigerant oil.

3.2.	Engage the knurled tangs of the J 33011 with the printed/stamped steel case side of the lip seal.

3.3.	Ensure that the flared-out side of the lip seal is installed towards the compressor.




4. Place the J 34614 over the end of the compressor shaft.

Notice: Use care when handling the seal protector. Do not nick the seal protector. This may damage the seal during installation. Ensure that the bottom of the seal protector is not flared. This may damage the seal during installation.




5. Slide the new lip seal onto the shaft with a rotary motion until the seal stops.

5.1.	Do not dislodge the O-ring.

5.2.	Disengage the Installer.

5.3.	Remove the J 34614 .

6. Leak test the compressor.

•	If you are working on the CCOT compressor, refer to Compressor Leak Testing .

•	If you are working on the VDOT compressor, refer to Compressor Leak Testing .




7. Remove any excess oil from the shaft and the compressor neck.



8. Use the J 4245 in order to install a new retainer ring.
9. Install the clutch plate and hub assembly.

•	If you are replacing the compressor shaft seal on the CCOT, refer to Compressor Clutch Plate and Hub Assembly .

•	If you are replacing the compressor shaft seal on the VDOT, refer to Compressor Clutch Plate and Hub Assembly Removal .

10. Install the belt. Refer to Drive Belt Diagnosis in Engine Cooling.



11. Tighten the brackets.
12. Evacuate the refrigerant system. Refer to Evacuation .
13. Charge the refrigerant system. Refer to A/C Charging Using ACR4 .
14. Use the J 39400 in order to leak test the refrigerant system. Refer to Leak Testing .

Compressor Shaft Seal Seltec Tm-16HD

1. Remove the compressor magnetic clutch. Refer to Compressor Magnetic Clutch .



2. Using the seal cover remover, remove the shaft seal cover. Engage the remover's hook and slowly draw out the cover.



3. Remove the snap ring using internal snap ring pliers.



4. Using the shaft seal remover/installer, remove the shaft seal. Engage the remover's hook and slowly draw out the shaft seal.
5. Discard the shaft seal.

•	Inspect the new shaft seal to ensure that the lip is not scratched or damaged in any way.

1. Clean the sealed section of the front cylinder head.
2. Apply clean compressor oil to the new shaft seal and to the front cylinder head.
3. Clean and apply clean compressor oil to the slip faces.

1. Fit the guide onto the end of the compressor drive shaft.



2. Install the shaft seal into the front cylinder head by slipping it over the guide.

2.1.	Use the installing end of the seal remover and insert the shaft seal as far into the front cylinder head as it will go.

2.2.	Remove the guide when the shaft seal is in place.




3. Using internal snap ring pliers, install the snap ring.
4. Use the installing end of the remover to press in the snap ring until it clicks.

Important: The round edge of the snap ring must face toward the compressor.




5. Install the compressor magnetic clutch. Refer to Compressor Magnetic Clutch .