Front Crankshaft Seal: Service and Repair

Crankshaft Front Oil Seal Replacement (With LY6)

Special Tools

J 41478 - Crankshaft Front Oil Seal Installer

Removal Procedure





1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement Service and Repair.

2. Remove the crankshaft front oil seal (140) from the front cover.

Installation Procedure

Note:

* Do not lubricate the oil seal sealing surface.

* Do not reuse the crankshaft front oil seal.





1. Lubricate the outer edge of the oil seal (140) with clean engine oil.

2. Lubricate the front cover oil seal bore with clean engine oil.





3. Install the crankshaft front oil seal (140) onto the J 41478 - Crankshaft Front Oil Seal Installer guide.

4. Install the J 41478 - Crankshaft Front Oil Seal Installer threaded rod (with nut, washer, guide, and oil seal) into the end of the crankshaft.

5. Use the J 41478 - Crankshaft Front Oil Seal Installer in order to install the oil seal into the cover bore.

1. Use a wrench and hold the hex on the installer bolt.

2. Use a second wrench and rotate the installer nut clockwise until the seal bottoms in the cover bore.

3. Remove the J 41478 - Crankshaft Front Oil Seal Installer.

4. Inspect the oil seal for proper installation. The oil seal should be installed evenly and completely into the front cover bore.

6. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement Service and Repair.