Compressor Shaft Seal: Service and Repair

AIR CONDITIONING (A/C) COMPRESSOR SHAFT SEAL

Special Tool(s):

Special Tool(s)

Removal

CAUTION: Refrigerant Compressor Oil (mineral oil) F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate the A/C compressor shaft seal only and should not be added to R-134a refrigerant system as an A/C compressor lubricant. PAG Refrigerant Compressor Oil F7AZ-19D589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.

1. Remove the A/C compressor.







2. Remove the clutch disc and hub bolt.
1 Hold the A/C clutch disc and hub with the special tool.
2 Remove the bolt.







3. Remove the A/C clutch disc and hub.
1 Thread an 8 x 1.25 mm (0.04 in) bolt into the A/C clutch disc and hub to force it from the A/C compressor shaft (if needed).
2 Lift the A/C clutch disc and hub and the A/C clutch disc and hub spacer(s) from the A/C compressor shaft.







4. Remove the shaft seal felt from the nose of the A/C compressor with the special tool.
5. Clean the compressor nose area.







6. Insert the tip of the special tool into one of the snap ring eyes.







7. Rotate the special tool to position the tool tip and the snap ring eye closest to the A/C compressor shaft.







8. Pull the special tool up quickly while keeping the tool shaft against the side of the nose opening and remove the snap ring.







9. Engage the special tool into the inside diameter of the shaft seal.







10. Turn the tool handle clockwise to expand the tool tip inside of the shaft seal.







11. Pull the seal from the A/C compressor.

Installation

1. CAUTION: To prevent refrigerant system contamination, do not allow dirt or other foreign materials to enter the A/C compressor.

Clean the A/C compressor nose area.







2. Place the shaft seal on the special tool. Lubricate the shaft seal and the special tool with mineral oil.







3. Position the shaft seal and the special tool over the A/C compressor shaft.







4. Push the shaft seal onto the A/C compressor shaft with the special tool until seated.







5. Install the shaft seal snap ring.
6. Carry out the A/C Compressor External Leak Test.







7. Install the shaft seal felt.







8. Install the A/C clutch disc and hub spacer(s) and the A/C clutch disc and hub.







9. Install the A/C clutch disc and hub bolt.
1 Hold the A/C clutch disc and hub with the special tool.
2 Install the bolt.







10. Measure and adjust the clutch air gap by adding or removing spacers as needed.