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Home >> Chevrolet >> 2014 >> Express 1500 LS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.8L (L20), 5.3L (LMF), Or 6.0L (L96 LC8) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Crankshaft Front Oil Seal Replacement (With LY6) >> Installation Procedure

Installation Procedure

NOTE:
  • Do not lubricate the oil seal sealing surface.
  • Do not reuse the crankshaft front oil seal.
    Fig 1: View Of Outer Edge Of Oil Seal
    GM1658279Courtesy of GENERAL MOTORS COMPANY
  1. Lubricate the outer edge of the oil seal (140) with clean engine oil.
  2. Lubricate the front cover oil seal bore with clean engine oil.
    3. Fig 2: View Of Front Oil Seal & Special Tool
    GM1658280Courtesy of GENERAL MOTORS COMPANY
  3. Install the crankshaft front oil seal (140) onto the J 41478  Crankshaft Front Oil Seal Installer guide.
  4. Install the J 41478  Crankshaft Front Oil Seal Installer threaded rod (with nut, washer, guide and oil seal) into the end of the crankshaft.
  5. Use the J 41478  Crankshaft Front Oil Seal Installer in order to install the oil seal into the cover bore.
    1. Use a wrench and hold the hex on the installer bolt.
    2. Use a second wrench and rotate the installer nut clockwise until the seal bottoms in the cover bore.
    3. Remove the J 41478  Crankshaft Front Oil Seal Installer.
    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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