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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 >> Lower Crankcase Extension Overhaul >> Engine Block Lower Structural Extension Inspection

Engine Block Lower Structural Extension Inspection

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  1. GM5028691Courtesy of GENERAL MOTORS COMPANY

    Inspect all balancer shaft bearing (1) for grooves, scratches and any other damage.

  2. Inspect the balancer shaft bearing cap (2, 3) for grooves, cracks, scratches and any other damage.
  3. Inspect the balancer shafts (5) for grooves, cracks, scratches and any other damage.
  4. Inspect the balancer shafts journals appear to be scored or damaged.
  5. Inspect all sealing and mating surfaces for damage, repair or replace the engine block lower structural extension if necessary.
  6. Inspect all threaded and through holes for damage or excessive debris.
  7. Inspect all bolts for damage, if damaged replace with NEW bolts only.