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Home >> Isuzu >> 2007 >> i-290 LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Engine Mechanical - 4.6L - 3 Of 4) >> Off-Vehicle Repair Instructions (2 Of 3) >> Crankshaft and Bearings Cleaning and Inspection >> Visual Inspection

Visual Inspection

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Crankshaft Components
    GM685385Courtesy 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.