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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1394 (Engine Mechanical - 4.3L) >> Repair Instructions - Off Vehicle >> Camshaft Bearing Removal >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of J 33049 Camshaft Bearing Service Kit Components
    GM66100Courtesy of GENERAL MOTORS CORP.
  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:  kit.
  2. Assemble the J 33049:  kit.
    3. Fig 2: Removing/Installing Camshaft Inner Bearing Using J 33049
    GM4985Courtesy of GENERAL MOTORS CORP.
    WARNING: Refer to Safety Glasses Warning .
    NOTE:
    • 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:  kit.
  3. Remove the camshaft inner bearings #2 and #3.
    1. Insert the J 33049:  kit through the front of the engine block and into the camshaft inner bearing #2.
    2. Tighten the J 33049:  kit expander assembly nut until snug.
    3. Push the J 33049:  kit guide cone into the camshaft front bearing in order to align the J 33049:  kit.
    4. Drive the camshaft inner bearing #2 from the camshaft inner bearing bore #2.
    5. Loosen the J 33049:  kit expander assembly nut.
    6. Remove the camshaft inner bearing #2 from the J 33049  expander assembly. See Special Tools .
    7. Insert the J 33049:  kit expander assembly into the camshaft inner bearing #3.
    8. Tighten the J 33049:  kit expander assembly nut until snug.
    9. Push the J 33049:  kit guide cone into the camshaft front bearing in order to align the J 33049:  kit.
    10. Drive the camshaft inner bearing #3 from the camshaft inner bearing bore #3.
    11. Loosen the J 33049:  kit expander assembly nut.
    12. Remove the camshaft inner bearing #3 from the J 33049:  kit expander assembly.
  4. Remove the J 33049:  kit from the engine block.
  5. Remove the camshaft outer bearings #1 and #4.
    1. Insert the J 33049:  kit into the camshaft outer bearing #1.
    2. Tighten the J 33049:  kit expander assembly nut until snug.
    3. Drive the camshaft outer bearing #1 from the camshaft outer bearing bore #1.
    4. Loosen the J 33049:  kit expander assembly nut.
    5. Remove the camshaft outer bearing #1 from the J 33049  expander assembly. See Special Tools .
    6. Remove the J 33049:  kit from the engine block.
    7. Insert the J 33049:  kit into the camshaft outer bearing #4.
    8. Tighten the J 33049:  kit expander assembly nut until snug.
    9. Drive the camshaft outer bearing #4 from the camshaft outer bearing bore #4.
    10. Loosen the J 33049:  kit expander assembly nut.
    11. Remove the camshaft outer bearing #4 from the J 33049:  kit expander assembly.
  6. Remove the J 33049:  kit from the engine block.
  7. Discard the camshaft bearings.
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