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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 >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT:
  • Do not reuse the crankshaft oil seal or front cover gasket.
  • Do not apply any type sealant to the front cover gasket (unless specified).
  • The special tool in this procedure is used to center the crankshaft front oil seal.
  • All gasket surfaces should be free of oil or other foreign material during assembly.
  • The crankshaft front oil seal MUST be centered in relation to the crankshaft.
  • An improperly aligned front cover may cause premature front oil seal wear and/or engine oil leaks.
  1. Apply a 5 mm (0.20 in) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.80 in) long to the oil pan to engine block junction.
  2. Install the front cover gasket and cover.
    Fig 1: View Of Front Cover & Gasket
    GM64278Courtesy of GENERAL MOTORS CORP.
  3. Install the front cover bolts until snug. Do not overtighten.
    4. Fig 2: Installing/Removing Oil Pan-To-Front Cover Bolts
    GM1379291Courtesy of GENERAL MOTORS CORP.
  4. Install the oil pan-to-front cover bolts (1) until snug. Do not overtighten.
    5. Fig 3: View of J 41476 Installed To Front Cover
    GM451712Courtesy of GENERAL MOTORS CORP.
  5. Install the J 41476  to the front cover. See Special Tools and Equipment .
  6. Align the tapered legs of the J 41476  with the machined alignment surfaces on the front cover. See Special Tools and Equipment .
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  7. Install the crankshaft balancer bolt until sung. Do not overtighten.

    Tighten: 

    1. Tighten the oil pan-to-front cover bolts to 25 N.m (18 lb ft).
    2. Tighten the engine front cover bolts to 25 N.m (18 lb ft).

  8. Remove the J 41476  . See Special Tools and Equipment .
    9. Fig 4: Identifying Crankshaft Oil Seal
    GM328699Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Do not lubricate the oil seal sealing surface.
    • Do not reuse the crankshaft oil seal.
  9. Lubricate the outer edge of the oil seal (1) with clean engine oil.
  10. Lubricate the front cover oil seal bore with clean engine oil.
    11. Fig 5: Installing The Crankshaft Front Oil Seal Using J 41478
    GM63177Courtesy of GENERAL MOTORS CORP.
  11. Install the crankshaft front oil seal into theJ 41478  guide. See Special Tools and Equipment .
  12. Install the J 41478  threaded rod (with nut, washer, guide, and oil seal) into the end of the crankshaft. See Special Tools and Equipment .
  13. Use the J 41478  in order to install the oil seal into the cover bore. See Special Tools and Equipment .
    • Use a wrench and hold the hex on the installer bolt.
    • Use a second wrench and rotate the installer nut clockwise until the seal bottoms in the cover bore.
    • Remove the tool.
    • Inspect the oil seal for proper installation. The oil seal should be installed evenly and completely into the front cover bore.
  14. Install the generator bracket. Refer to Generator Bracket Replacement (LS6) in Engine Electrical.
  15. Install the accessory drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement - Accessory .
  16. Install the air conditioning belt tensioner. Refer to Drive Belt Tensioner Replacement - Air Conditioning .
  17. Install the water pump. Refer to Water Pump Replacement (LS6) in Engine Cooling.
  18. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
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