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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • Do not reuse the crankshaft oil seal or front cover gasket.
  • Do not apply any type of sealant to the front cover gasket (unless specified).
  • The special tool in this procedure is used to properly center the front 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.
    Fig 1: Installing Front Cover Gasket And Cover
    G02129193Courtesy of GENERAL MOTORS CORP.
  2. Install the front cover gasket and cover.
  3. Install the front cover bolts until snug. Do not overtighten.
  4. Install the oil pan-to-front cover bolts until snug. Do not over tighten.
  5. Install J 41476  to the front cover.
  6. Align the tapered legs of the J 41476  with the machined alignment surfaces on the front cover.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  7. Install the crankshaft balancer bolt until snug. Do not overtighten.

    Tighten 

    1. 7.1. Tighten the oil pan to front cover bolts to 25 N.m (18 lb ft).
    2. 7.2. Tighten the engine front cover bolts to 25 N.m (18 lb ft).
  8. Remove the J 41476  .
  9. Install a NEW crankshaft front oil seal. Refer to CRANKSHAFT FRONT OIL SEAL REPLACEMENT   .
  10. Install the water pump. Refer to WATER PUMP REPLACEMENT (5.3L ENGINE)  in Engine Cooling.
    Fig 2: Installing Front and Rear Cover Alignment Tool To Front Cover
    G02129194Courtesy of GENERAL MOTORS CORP.
  11. Install the A/C compressor and bracket. Refer to COMPRESSOR REPLACEMENT (BODY TYPE VIN 3)  or COMPRESSOR REPLACEMENT (BODY TYPE VIN 6)  in Heating, Ventilation, and Air Conditioning.
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