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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1618 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Camshaft Bearing Removal >> Tools Required

Tools Required

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

J 33049  Camshaft Bearing Service Kit

  1. Select the cone (1), the handle (10), the expanding driver (4-8), the washer (2 or 3), and the expander assembly (15) from the J 33049. 
  2. Assemble the J 33049  .
    Fig 1: Camshaft Bearing Service Kit Components
    G02106264Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
    IMPORTANT:
    • A loose camshaft bearing may be caused by an enlarged, out-of-round, or damaged engine block camshaft bearing bore.
    • Always remove the camshaft inner bearings #2 and #3 first. The camshaft outer bearings #1 and #4 serve as a guide for the J 33049  .
  3. Remove the camshaft inner bearings #2 and #3.
    1. 3.1. Insert the J 33049  through the front of the engine block and into the camshaft inner bearing #2.
    2. 3.2. Tighten the J 33049  expander assembly nut until snug.
    3. 3.3. Push the J 33049  guide cone into the camshaft front bearing in order to align the J 33049  .
      Fig 2: J 33049 (Camshaft Bearing Service Kit)
      G02106265Courtesy of GENERAL MOTORS CORP.
    4. 3.4. Drive the camshaft inner bearing #2 from the camshaft inner bearing bore #2.
    5. 3.5. Loosen the J 33049  expander assembly nut.
    6. 3.6. Remove the camshaft inner bearing #2 from the J 33049  expander assembly.
    7. 3.7. Insert the J 33049  expander assembly into the camshaft inner bearing #3.
    8. 3.8. Tighten the J 33049  expander assembly nut until snug.
    9. 3.9. Push the J 33049  guide cone into the camshaft front bearing in order to align the J 33049  .
    10. 3.10. Drive the camshaft inner bearing #3 from the camshaft inner bearing bore #3.
    11. 3.11. Loosen the J 33049  expander assembly nut.
    12. 3.12. Remove the camshaft inner bearing #3 from the J 33049  expander assembly.
  4. Remove the J 33049  from the engine block.
  5. Remove the camshaft outer bearings #1 and #4.
    1. 5.1. Insert the J 33049  into the camshaft outer bearing #1.
    2. 5.2. Tighten the J 33049  expander assembly nut until snug.
    3. 5.3. Drive the camshaft outer bearing #1 from the camshaft outer bearing bore #1.
    4. 5.4. Loosen the J 33049  expander assembly nut.
    5. 5.5. Remove the camshaft outer bearing #1 from the J 33049  expander assembly.
    6. 5.6. Remove the J 33049  from the engine block.
    7. 5.7. Insert the J 33049  into the camshaft outer bearing #4.
    8. 5.8. Tighten the J 33049  expander assembly nut until snug.
    9. 5.9. Drive the camshaft outer bearing #4 from the camshaft outer bearing bore #4.
    10. 5.10. Loosen the J 33049  expander assembly nut.
    11. 5.11. Remove the camshaft outer bearing #4 from the J 33049  expander assembly.
  6. Remove the J 33049  from the engine block.
  7. Discard the camshaft bearings.
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