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Bearings and Races

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Bearing Rollers & Races For Pitting, Grooves, Spalling & Excessive Wear
    GM1465Courtesy of GENERAL MOTORS CORP.
  1. Inspect the bearing rollers and races for the following:
    • Pitting
    • Scoring or grooves
    • Excessive wear or other damage
  2. Fig 2: Inspecting Bearing Rollers & Races For Heat Discoloration
    GM1458Courtesy of GENERAL MOTORS CORP.
  3. Inspect the bearing rollers and races for heat discoloration.

    Heat discoloration ranges from a faint yellow to a dark blue color. This discoloration may result from an overload or improper lubrication. Excessive heat causes softening of the rollers and races. Bearings or races with sign of heat discoloration must be replaced.

  4. Fig 3: Identifying Bent Roller Cage
    GM1648Courtesy of GENERAL MOTORS CORP.
  5. Inspect for bent bearing cages.
  6. Fig 4: Inspecting For Damaged Bearing Cages
    GM1456Courtesy of GENERAL MOTORS CORP.
  7. Inspect for damaged bearing cages.
  8. Fig 5: Inspecting Left Side Cover Output Shaft Bearing For Worn Needle Bearings
    GM354442Courtesy of GENERAL MOTORS CORP.
  9. Inspect the left side cover output shaft bearing (1) for worn or missing needle bearings.