Crankshaft Seal Retainer: Service and Repair

Crankshaft Rear Oil Seal and Housing Replacement

^ Tools Required
- J 36660-A Torque Angle Meter
- J 41349 Rear Cover Aligner

Removal Procedure





1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Drain the cooling system.
3. Drain the engine oil.
4. Remove the engine flywheel.
5. Remove the oil pan.
6. Remove the crankshaft rear oil seal housing bolts.
7. Remove the crankshaft rear oil seal housing.
8. Remove the crankshaft rear oil seal.

Important: Ensure not to damage the crankshaft outside diameter surface with any tool.

9. Remove the gasket from the crankshaft rear oil seal housing and the cylinder block.
10. Inspect the inside diameter of the bore. Correct or replace the crankshaft rear oil seal housing if necessary.
11. Inspect the crankshaft for nicks of burrs on the surface that contacts the seal.
12. Repair or replace the crankshaft if necessary.

Installation Procedure





1. Ensure that the crankshaft rear oil seal is removed from the crankshaft rear oil seal housing.
2. Clean the old gasket from the crankshaft rear oil seal housing and the cylinder block.
3. Install the new gasket over the crankshaft rear oil seal housing bolt threads to aid in proper alignment of the gasket.

Notice: Correct alignment of the housing is crucial to sealing ability of the rear main and the oil pan. Take care when installing the housing to ensure that the housing is properly aligned. Failure to follow these procedures may result in oil leaks.

4. Install the crankshaft rear oil seal housing and finger tighten all the bolts (loose enough to adjust the crankshaft rear oil seal housing) to hold the crankshaft rear oil seal housing in place. Make sure the gasket is not higher than the crankshaft rear oil seal housing.
Plastic inserts in the crankshaft rear oil seal housing are only used as an assembly aid and are not required for service.
5. Wipe a thin film of oil on both sides of the J41349to aid in installation and removal from the crankshaft.





6. Install the J 41349 over the crankshaft. Twisting or turning the J 41349 aids in sliding it completely over the crankshaft.





7. Place a straight edge on the cylinder block oil pan flange and the rear oil seal housing flange. Use a feeler gage to make sure that there is no more than 0.1016 mm (0.004 inch) step (high or low) on each side. Rotate the crankshaft rear oil seal housing to get the step equal on each side, if necessary. If the crankshaft rear oil seal housing can not be rotated to get the step within specification, replace the crankshaft rear oil seal housing.

Notice: Refer to Fastener Notice in Service Precautions.

8. Tighten the crankshaft rear oil seal housing bolts.
8.1. Tighten the crankshaft rear oil seal housing bolts to 15 Nm (11 ft. lbs.).
8.2. Use the J 36660-A to rotate the crankcase rear oil seal housing bolts an additional 50°.
9. Remove the J 41349.
10. Recheck the step height on each side to make sure that the crankshaft rear oil seal housing did not move while tightening the bolts. If the step height is beyond specification, repeat steps 4 through 8 and measure again. If excessive clearance is still present, replace the crankshaft rear oil seal housing.
11. Install the new crankshaft rear oil seal.
12. Install the oil pan.
13. Install the engine flywheel.
14. Lower the vehicle.
15. Fill- the cooling system.
16. Fill the crankcase with engine oil.
17. Inspect for leaks.