N14 Base Engine Troubleshooting and Repair Manual – 001-003   Accessory Drive Seal

• Remove the cooling fan drive belt. Refer to Procedure 008-002.
• Remove the water pump drive belt. Refer to Procedure 008-003.
• Remove the freon compressor drive belt, if equipped. Refer to the manufacturer’s instructions.
• Remove the accessory drive pulley. Refer to Procedure 009-004.

Drill two 3 mm [1/8 in] holes 180 degrees apart in the seal casing.

Use a number 10 sheet metal screw and a slide hammer puller or a suitable pry bar to remove the seal.

Use a small magnet and a clean cloth to remove any shavings from the seal bore and the accessory drive shaft.

Inspect the seal bore for nicks, scratches, and sharp edges.

Use a 240 grit emery cloth dipped in clean lubricating oil to remove any minor defects.

Use a crocus cloth to remove any deposits from the seal bore as a final polishing operation.

Clean the seal bore and the accessory drive shaft with a clean cloth.

A guide must be used to prevent damage by reversing the main sealing lip because of incorrect contact with the shaft.

• An oil seal that is red is used on new assemblies and as a service replacement when the shaft does not have a groove in it.
• An oil seal that is blue is used when the shaft has a groove worn in it from the seal lip and requires a wear sleeve to restore it.

Do not use any kind of lubricant to install the seal. The oil seal must be installed with the lip of the seal and the seal wear area of the accessory drive shaft clean and dry. Use of lubricant will result in oil leakage at the seal.

Place the correct oil seal and guide onto the shaft.

Thread the inner piece of pulley assembly tool, Part Number 3376085 (Kit Part Number 3376362), onto the accessory drive shaft.

Install the oil seal driver, Part Number 3824451, onto the shaft.

Install the outer piece of the oil seal driver onto the inner piece.

Apply a thin coat of grease to the contact surface of the outer piece of the oil seal driver, Part Number 3376085.

Drive the seal into the seal bore until the seal drive contacts the gear cover.

Rotate the outer piece of the driver clockwise until the oil seal driver stops on the hub of the gear cover.

The seal must be installed flush to the gear cover oil seal hub.

• Install the accessory drive pulley. Refer to Procedure 009-004.
• Install the freon compressor drive belt, if removed. Refer to the manufacturer’s instructions.
• Install the water pump drive belt. Refer to Procedure 008-003.
• Install the cooling fan drive belt. Refer to Procedure 008-002.