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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 948 (Engine Mechanical - 4.3L) >> Repair Instructions - Off Vehicle >> Camshaft Bearing Removal >> Tools Required

Tools Required

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

J 33049  Camshaft Bearing Service Kit. See Special Tools .

    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  . See Special Tools .
  2. Assemble the J 33049  . See Special Tools .
    3. Fig 2: Removing/Installation Camshaft Inner Bearing Using J 33049
    GM4985Courtesy 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  . See Special Tools .
  3. Remove the camshaft inner bearings #2 and #3.
    1. Insert the J 33049  through the front of the engine block and into the camshaft inner bearing #2. See Special Tools .
    2. Tighten the J 33049  expander assembly nut until snug. See Special Tools .
    3. Push the J 33049  guide cone into the camshaft front bearing in order to align the J 33049  . See Special Tools .
    4. Drive the camshaft inner bearing #2 from the camshaft inner bearing bore #2.
    5. Loosen the J 33049  expander assembly nut. See Special Tools .
    6. Remove the camshaft inner bearing #2 from the J 33049  expander assembly. See Special Tools .
    7. Insert the J 33049  expander assembly into the camshaft inner bearing #3. See Special Tools .
    8. Tighten the J 33049  expander assembly nut until snug. See Special Tools .
    9. Push the J 33049  guide cone into the camshaft front bearing in order to align the J 33049  . See Special Tools .
    10. Drive the camshaft inner bearing #3 from the camshaft inner bearing bore #3.
    11. Loosen the J 33049  expander assembly nut. See Special Tools .
    12. Remove the camshaft inner bearing #3 from the J 33049  expander assembly. See Special Tools .
  4. Remove the J 33049  from the engine block. See Special Tools .
  5. Remove the camshaft outer bearings #1 and #4.
    1. Insert the J 33049  into the camshaft outer bearing #1. See Special Tools .
    2. Tighten the J 33049  expander assembly nut until snug. See Special Tools .
    3. Drive the camshaft outer bearing #1 from the camshaft outer bearing bore #1.
    4. Loosen the J 33049  expander assembly nut. See Special Tools .
    5. Remove the camshaft outer bearing #1 from the J 33049  expander assembly. See Special Tools .
    6. Remove the J 33049  from the engine block. See Special Tools .
    7. Insert the J 33049  into the camshaft outer bearing #4. See Special Tools .
    8. Tighten the J 33049  expander assembly nut until snug. See Special Tools .
    9. Drive the camshaft outer bearing #4 from the camshaft outer bearing bore #4.
    10. Loosen the J 33049  expander assembly nut. See Special Tools .
    11. Remove the camshaft outer bearing #4 from the J 33049  expander assembly. See Special Tools .
  6. Remove the J 33049  from the engine block. See Special Tools .
  7. Discard the camshaft bearings.
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