Rear Crankshaft Main Bearing Seal: Service and Repair

Crankshaft Rear Oil Seal Replacement


Special Tools
* J 41479 Crankshaft Rear Oil Seal Installer
* J 41479-2A Crankshaft Rear Oil Seal Installation Guide



Removal Procedure





1. Remove the engine flywheel. Refer to Engine Flywheel Replacement (Service and Repair) .
2. Remove and discard the crankshaft rear oil seal (141).



Installation Procedure






Important: For proper orientation, note the installation direction of the oil seal. The oil seal is a reverse-lip design. The part number is applied to the outside face of the seal, as shown.


1. Inspect the seal and identify the part number markings for proper orientation.





Important:
* Do not lubricate the oil seal inside diameter (ID) or the crankshaft surface.

* Do not reuse the crankshaft rear oil seal.



2. Lubricate the outside diameter (OD) of the oil seal (141) with clean engine oil. DO NOT allow oil or other lubricants to contact the seal surface.
3. Lubricate the rear cover oil seal bore with clean engine oil. DO NOT allow oil or other lubricants to contact the crankshaft surface.




4. Install the J 41479 tapered cone (2) with the J 41479-2A and bolts onto the rear of the crankshaft.
5. Tighten the bolts until snug. Do not overtighten.
6. Install the rear oil seal onto the tapered cone (2) and push the seal to the rear cover bore.
7. Install the oil seal with the part number markings facing away from the engine.
8. Thread the J 41479 threaded rod into the tapered cone until the tool (1) contacts the oil seal.
9. Align the oil seal into the tool (1).
10. Rotate the handle of the tool (1) clockwise until the seal enters the rear cover and bottoms into the cover bore.
11. Remove the J 41479 and the J 41479-2A .
12. Install the engine flywheel. Refer to Engine Flywheel Replacement (Service and Repair) .