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Home >> Chevrolet >> 2000 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1189 (Engine Mechanical (Repair Instructions 3 Of 5) - 3.6L (Ly7)) >> Repair Instructions (Off-Vehicle Repair Instructions - Part 2) >> Crankshaft and Bearings Cleaning and Inspection >> Visual Inspection

Visual Inspection

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Crankshaft
    GM1210771Courtesy 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 oil pump drive flats (4) for damage.
    • Inspect the crankshaft main journals (5) for damage.
    • Inspect the crankshaft connecting rod journals (6) for damage.
    • Inspect the crankshaft oil passages (7) for obstructions.
    • Inspect the crankshaft main bearing thrust wall surfaces (8) for damage.
    • Inspect the crankshaft counterweights (9) for damage.
    • Inspect the crankshaft reluctor ring teeth (10) for damage.
    • Inspect the crankshaft rear main oil seal surface (11) for damage.
    • Inspect the crankshaft engine flywheel mounting surface (12) for damage.
    • Inspect the crankshaft pilot hole (13) for damage.
    • Inspect the crankshaft engine flywheel bolt holes (14) for thread damage.
  2. Repair or replace the crankshaft as necessary.