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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 992 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Crankshaft Balancer Cleaning and Inspection

Crankshaft Balancer Cleaning and Inspection

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
  1. Clean the crankshaft balancer in cleaning solvent.
  2. Dry the crankshaft balancer with compressed air.
  3. Inspect the crankshaft balancer for the following:
    • Loose or improperly installed crankshaft balancer front groove pin (1)

      A properly installed front groove pin should be installed until flush or below flush with the face of the crankshaft balancer.

      • IMPORTANT: A crankshaft front oil sealing surface with excessive scoring, grooves, rust, or other damage must be replaced.
    • Worn, grooved, or damaged crankshaft front oil sealing surface (2)

      Minor imperfections on the crankshaft balancer crankshaft front oil seal surface may be removed with a polishing compound or fine grade emery cloth.

    • Worn, chunking, or deteriorated rubber (3) between the hub and the outer ring
    • Worn or damaged keyway (4)
    • Worn or damaged bolt hole threads (5)
    4. Fig 1: Crankshaft Balancer Cleaning & Inspection Areas
    GM334387Courtesy of GENERAL MOTORS CORP.
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