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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 638 (Engine Mechanical - 4.0L (Unit Repair)) >> Repair Instructions >> Crankshaft Balancer Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the crankshaft balancer for the following:
    • Worn or damaged hub-to-crankshaft surface (1)
    • Worn, grooved, or damaged hub seal surface (2). A crankshaft balancer hub seal surface with excessive scoring, grooves, rust, or other damage must be replaced.
    • Bent, damaged or missing crankshaft front oil seal shield (3)
    • Worn, chunking, or deteriorated rubber between the hub and pulley (4)
    • Damaged drive belt ribs (5)
  2. Repair or replace the crankshaft balancer as necessary.
    Fig 1: Checking Crankshaft Balancer
    G01815851Courtesy of GENERAL MOTORS CORP.
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