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Crankshaft Balancer Cleaning and Inspection

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the crankshaft balancer in solvent.
    CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  2. Dry the crankshaft balancer with compressed air.
  3. Inspect the crankshaft balancer for the following:
    • Damaged belt grooves (3)
    • Debris in the belt grooves (3)
    • Worn, grooved, or damaged hub seal surface (1)
      • Minor imperfections on the hub seal surface may be removed with a polishing compound or fine grade of emery cloth.
      • A crankshaft balancer hub seal surface with excessive scoring, grooves, rust or other damage must be replaced.
    • Worn, chunking or deteriorated rubber between the hub and pulley (2)
  4. Repair or replace the crankshaft balancer as necessary.
    Fig 1: Hub Seal Surface, Belt Grooves & Pulley
    G01675439Courtesy of GENERAL MOTORS CORP.