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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Mechanical - 4.4L (3 Of 5)) >> Off-Vehicle Repair Instructions (Part 2) >> Crankshaft and Bearing Cleaning and Inspection - Off Vehicle >> Visual Inspection

Visual Inspection

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    Fig 1: Crankshaft Inspection Points
    GM1039112Courtesy of GENERAL MOTORS CORP.
  1. Perform the following visual inspections:
    • Inspect the crankshaft balancer bolt hole (1) for thread damage
    • Inspect the crankshaft balancer mounting area (2) for damage
    • Inspect the crankshaft sprocket pin hole (3) for damage
    • Inspect the crankshaft main journals (4) for damage
    • Inspect the crankshaft connecting rod journals (5) for damage
    • Inspect the crankshaft oil passages (6) for obstructions
    • Inspect the crankshaft main bearing thrust wall surfaces (7) for damage
    • Inspect the crankshaft reluctor ring teeth (8) for damage
    • Inspect the crankshaft counterweights (9) for damage
    • Inspect the crankshaft rear main oil seal surface (10) for damage
    • Inspect the crankshaft engine flywheel mounting surface (11) for damage
    • Inspect the crankshaft engine flywheel bolt holes (12) for thread damage
    • Inspect the crankshaft pilot hole (13) for damage
  2. Repair or replace the crankshaft as necessary.