GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41221 Oil Seal Installer

Removal Procedure

  1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  2. Carefully remove the front cover seal by prying out with a screwdriver. Do not damage the front cover.

Installation Procedure

  1. Apply clean engine oil to the front cover oil seal.
  2. Insert the front cover oil seal into the adapter for the J 41221 .
  3. Using the J 41221 , install the front cover oil seal by tightening the center bolt until the sleeve comes in contact with the adapter and stops.
  4. Inspect the distance between the crankshaft end surface and the front cover oil seal, ensuring at several points the measurement is 8.5 mm (0.335 in)
  5. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .