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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 5.7L (LS6)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Installation >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT:
    • Do not lubricate the oil seal inside diameter (ID) or the crankshaft surface.
    • Do not use the crankshaft rear oil seal again.
  1. Lubricate the outside diameter (OD) of the oil seal (141) 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.

    Fig 1: View Of Crankshaft Rear Oil Seal
    GM1272844Courtesy of GENERAL MOTORS CORP.
    3. Fig 2: Installing Crankshaft Rear Oil Seal Using J 41479
    GM63200Courtesy of GENERAL MOTORS CORP.
  3. Install the J 41479  cone (2) and bolts onto the rear of the crankshaft. See Special Tools and Equipment .
  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 and Equipment .
  7. Align the oil seal onto 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 tool.
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