Rear Crankshaft Main Bearing Seal: Service and Repair

Removal Procedure

^ Tools Required
- J 39084 Rear Crankshaft Oil Seal Installer

Important: Before a new seal is installed, the CDR and the crankcase ventilation system should be thoroughly inspected and the crankcase pressure should also be checked. Refer to Powertrain Management.

1. Disconnect the battery negative cables from the batteries.
For the front battery, refer to Battery Cable Replacement (Battery Cable Negative) in Starting and Charging.
For the auxiliary battery, refer to Battery Cable Replacement (Battery Cable Aux. Negative) in Starting and Charging.
2. Remove the engine cover from the vehicle.
3. Remove the transmission from the vehicle.
4. Remove the flywheel from the crankshaft.





5. Remove the crankshaft rear oil seal from the engine block.

Installation Procedure

^ Tools Required
- J 39084 Rear Crankshaft Oil Seal Installer

Important: Coat the crankshaft surface with clean engine oil, and lightly coat the sealing area of the new oil seal with engine oil or grease before installing the new oil seal. Do not scratch or nick the sealing edge of the oil seal.

1. Install the crankshaft rear oil seal into the tool, with the spring cavity towards the engine, onto the crankshaft.





2. Use the J 39084 to install the crankshaft rear oil seal in the engine block.
3. Install the flywheel on to the crankshaft.
4. Install the transmission in the vehicle.
5. Install the engine cover in the vehicle.
6. Connect the battery negative cables to the batteries.