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Home >> GMC >> 2005 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 223 (Engine Mechanical - 3.6L (Ly7) (4 Of 6)) >> Off-Vehicle Repair Instructions - Part 2 >> Crankshaft Balancer Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Crankshaft Balancer
    GM1210789Courtesy of GENERAL MOTORS CORP.
  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.
    • Worn, chunking or deteriorated rubber between the hub and pulley (3)
    • Damaged drive belt ribs (4)
    • Damaged threaded holes (5)
  2. Repair or replace the crankshaft balancer as necessary.