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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 429 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Crankshaft Pulley Cleaning and Inspection

Crankshaft Pulley Cleaning and Inspection

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the crankshaft pulley in solvent.
  2. Clean the belt grooves of all dirt or debris with a wire brush.
    Fig 1: View Of Crankshaft Pulley
    G01546493Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  3. Dry the crankshaft pulley with compressed air.
  4. Inspect the crankshaft pulley for the following:
    • Worn, grooved, or damaged hub seal surface

      A crankshaft pulley hub seal surface with excessive scoring, grooves, rust or other damage must be replaced.

      Minor imperfections on the hub seal surface may be removed with polishing compound or fine grade emery cloth.

      Important:  In order for the belt to track properly, the belt grooves should be free of all dirt or debris.

    • Dirty or damaged belt grooves

      The pulley belt grooves should be free of any nicks, gouges, or other damage that may not allow the belt to track properly.

      Minor imperfections may be removed with a fine file.

    • Worn, chunking or deteriorated rubber between the hub and pulley