GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42851 Front Cover Oil Seal Installer

Removal Procedure


    Object Number: 470799  Size: SH
  1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  2. Important: Use care as not to damage the engine front cover or the crankshaft sealing area when removing the crankshaft front cover oil seal.

  3. Remove the crankshaft front cover oil seal.

Installation Procedure


    Object Number: 873817  Size: SH
  1. Lubricate the outer sealing surface oft he crankshaft front oil seal lightly with clean engine oil. DO NOT lubricate the inner portion of the seal.
  2. Position the NEW seal in the front cover so that the dimple (1) on the rear of the seal is in the 12 o'clock position.
  3. Using J 42851 install the oil seal.
  4. Remove the J 42851 .
  5. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .