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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 >> On-Vehicle Repair Instructions >> Crankshaft Front Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT:
  • Do not lubricate the oil seal sealing surface.
  • Do not reuse the crankshaft oil seal.
    Fig 1: Identifying Crankshaft Oil Seal
    GM328699Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the outer edge of the oil seal (1) with clean engine oil.
  2. Lubricate the front cover oil seal bore with clean engine oil.
    3. Fig 2: Installing The Crankshaft Front Oil Seal Using J 41478
    GM63177Courtesy of GENERAL MOTORS CORP.
  3. Install the crankshaft front oil seal onto the J 41478  guide.
  4. Install the J 41478  threaded rod (with nut, washer, guide, and oil seal) into the end of the crankshaft.
  5. Use the J 41478  in order to install the oil seal into the cover bore. See Special Tools and Equipment .
    1. Use a wrench and hold the hex on the installer tool.
    2. Use a second wrench and rotate the installer nut clockwise until the seal bottoms in the cover bore.
    3. Remove the tool.
    4. Inspect the oil seal for proper installation. The oil seal should be installed evenly and completely into the front cover bore.
  6. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
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