Rear Crankshaft Main Bearing Seal: Service and Repair

NOTE: The rear engine crankshaft oil seal is replaced without removing the engine from the vehicle.

CAUTION: The rear crankshaft seal installation tool installs the seal 1.0 mm (0.040 inch) deeper into the carrier than the factory. Installing the seal 1.0 mm (0.040 inch) will make sure the seal lip contacts a different surface area on the rear crankshaft flange.

METHOD ONE





1. If the rear oil seal carrier is removed from the cylinder block, use a screwdriver and hammer to tap out the oil seal.

CAUTION: Do not allow screwdriver blade to contact crankshaft flange seal surface.

2. If the rear oil seal carrier is not removed from the cylinder block, use the pry tangs provided in the carrier to remove the seal with a screwdriver and hammer.





3. Check the oil seal lip contact surface of the crankshaft for scratches or damage. If rust is present, remove using Scotch-Brite pad. Do not use emery cloth, sandpaper or other abrasive materials. Rust removal is necessary to prevent seal lip damage during installation.





4. With the crankshaft and rear carrier installed on the cylinder block, use seal installer to install a new oil seal. The service tool prevents rolling the seal's lip. Never tap on seal or seal installer with a hammer.
5. Apply a film of oil to the seal lip and inside diameter of the carrier.

METHOD TWO
1. If the rear crankshaft oil seal carrier is not installed on the cylinder block, apply light coat of engine oil to the seal lip and inside diameter of the carrier.





2. Using seal installer and a arbor press, push the oil seal into the carrier. Never tap on the seal or seal installer with a hammer.





NOTE: The rear crankshaft oil seal should be installed with the crankshaft and carrier assembled in the cylinder block whenever possible. The seal installer is designed to pull the seal in to place and make sure it is properly seated. The seal installer is designed to guide the seal over the rear crankshaft flange. The service tool prevents rolling the seal's lip.

3. Apply a 2.0 mm (0.080 inch) diameter bead of RTV to the carrier.

CAUTION: Assemble while RTV is still wet (within three minutes). Do not wait for RTV to skin over.

4. Install the four rear crankshaft seal carrier bolts. Torque to 11 Nm (97 inch lbs.).





CAUTION: If the rear and side cylinder block oil gallery plugs have been removed, clean the threads and apply Loctite or equivalent. Do not over-torque the plugs. Torque is 30 Nm (22 ft. lbs.).