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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Engine Mechanical) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • The flywheel spacer (if applicable) must be removed prior to oil seal installation.
  • Do not lubricate the oil seal inside diameter (ID) or the crankshaft surface.
  • Do not reuse the crankshaft rear oil seal.
    Fig 1: View Of Crankshaft Rear Oil Seal
    GM490692Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the outside diameter (OD) of the oil seal (1) with clean engine oil.

    DO NOT allow oil or other lubricants to contact the seal surface.

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

    DO NOT allow oil or other lubricants to contact the crankshaft surface.

    3. Fig 2: Installing Crankshaft Rear Oil Seal Using J 41479
    GM63200Courtesy of GENERAL MOTORS CORP.
  3. Install the J 41479  tapered cone (2) and bolts onto the rear of the crankshaft. See Special Tools .
  4. Tighten the bolts until snug. Do not overtighten.
  5. Install the rear oil seal onto the tapered cone (2) and push the seal to the rear cover bore.
  6. Thread the J 41479  threaded rod into the tapered cone until the tool (1) contacts the oil seal. See Special Tools .
  7. Align the oil seal into the tool (1).
  8. Rotate the handle of the tool (1) clockwise until the seal enters the rear cover and bottoms into the cover bore.
  9. Remove the J 41479  . See Special Tools .
  10. Install the engine flywheel. Refer to Engine Flywheel Replacement .
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