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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

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    Fig 1: View Of J 42849
    GM640011Courtesy of GENERAL MOTORS CORP.
  1. Make sure the crankshaft is free of grit, loose rust, and burrs. Correct as needed.
  2. Apply a very light film of oil onto the crankshaft sealing surface. DO NOT apply oil to the sealing surface of the engine block.
  3. Install the seal onto J 42849  . See Special Tools .
  4. Position the J 42849  against the crankshaft. See Special Tools . Thread the attaching screws into the tapped holes in the crankshaft.
  5. Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
  6. Rotate the center nut until the J 42849  bottoms. See Special Tools .
  7. Remove the J 42849  . See Special Tools .
  8. Install the flywheel. Refer to Engine Flywheel Replacement .