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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.0L (LSY)) >> Repair Instructions >> Crankshaft and Bearing Removal and Installation >> Visual Inspection

Visual Inspection

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  1. GM5034039Courtesy of GENERAL MOTORS COMPANY

    Inspect the 5 crankshaft bearing journals (1) and 4 connecting rod bearing journals (2) for wear:

    • grooves or scoring
    • scratches
    • pitting or imbedded bearing material
  2. GM52051Courtesy of GENERAL MOTORS COMPANY

    Inspect crankshaft bearings for craters or pockets. Flattened sections on the bearing halves also indicate fatigue.

  3. GM52053Courtesy of GENERAL MOTORS COMPANY

    Inspect the crankshaft bearings for excessive scoring or discoloration.

  4. Inspect the crankshaft bearings for dirt or debris imbedded into the bearing material.
  5. GM52056Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • If the lower half of the bearing is worn or damaged, both upper and lower halves should be replaced.
    • Generally, if the lower half is suitable for use, the upper half should also be suitable for use.

    Inspect the crankshaft bearings for improper seating indicated by bright, polished sections of the bearing.