Crankshaft Front Oil Seal Installation

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

J-41478-A Crankshaft Front Oil Seal Installer

Courtesy of GENERAL MOTORS COMPANY
NOTE:
- Do not lubricate the oil seal sealing surface.
- Do not use the crankshaft front oil seal again.
Lubricate the outer edge of the oil seal (140) with clean engine oil.
Lubricate the front cover oil seal bore with clean engine oil.
Courtesy of GENERAL MOTORS COMPANY

Install the crankshaft front oil seal (140) onto the J-41478-A crankshaft front oil seal installer.
Install the J-41478-A crankshaft front oil seal installer threaded rod, with nut, washer, guide, and oil seal, into the end of the crankshaft.
Use the J-41478-A 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 tool.
4. Inspect the oil seal for proper installation. The oil seal should be installed evenly and completely into the front cover bore.