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Home >> Chevrolet >> 2010 >> Camaro LS, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Mechanical - 6.2L - Repair Instructions - On Vehicle) >> Camshaft Timing Chain and Sprocket Replacement (LS3) >> Installation Procedure

Installation Procedure

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    Fig 1: View Of Crankshaft Key & Keyway
    GM156149Courtesy of GENERAL MOTORS CORP.
  1. Install the key into the crankshaft keyway, if previously removed.
    2. Fig 2: View Of Installed Crankshaft Key
    GM1272887Courtesy of GENERAL MOTORS CORP.
  2. Tap the key (122) into the keyway until both ends of the key bottom onto the crankshaft.
    3. Fig 3: View Of Crankshaft Sprocket
    GM1658182Courtesy of GENERAL MOTORS CORP.
  3. Install the crankshaft sprocket (207) onto the front of the crankshaft. Align the crankshaft key with the crankshaft sprocket keyway.
    4. Fig 4: View Of Crankshaft Sprocket & Installer
    GM1658237Courtesy of GENERAL MOTORS CORP.
  4. Use the J 41478  (1) and the J 41665  (2) in order to install the crankshaft sprocket. Install the sprocket onto the crankshaft until fully seated against the crankshaft flange.
    5. Fig 5: View Of Timing Chain Tensioner
    GM1658251Courtesy of GENERAL MOTORS CORP.
  5. Install the timing chain tensioner (232) and bolts (231).

    Tighten:  Tighten the bolts to 30 N.m (22 lb ft).

    6. Fig 6: View Of Compressed Tensioner & Pin
    GM1658249Courtesy of GENERAL MOTORS CORP.
  6. Compress the timing chain tensioner guide and install the EN 46330  . See Special Tools .
    7. Fig 7: View Of Camshaft Sprocket & Timing Chain
    GM1658265Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • The sprocket teeth and timing chain must mesh.
    • The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.
  7. Position the camshaft sprocket (205) so the timing mark is in the 6 o'clock position.
  8. Install the camshaft sprocket (205), timing chain (208), and bolt (206).
    9. Fig 8: Identifying Camshaft & Crankshaft Marks
    GM1658268Courtesy of GENERAL MOTORS CORP.
  9. Inspect the sprockets for proper alignment. The mark on the camshaft sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.
    10. Fig 9: Locating Tensioner Pin
    GM1658271Courtesy of GENERAL MOTORS CORP.
  10. Remove the EN 46330  . See Special Tools .
    11. Fig 10: Tightening Camshaft Sprocket Bolt
    GM1658274Courtesy of GENERAL MOTORS CORP.
    NOTE: Do Not re-use camshaft sprocket bolt. New sprocket bolt must be used.
  11. Tighten the camshaft sprocket bolt

    Tighten: 

    1. Tighten the bolt a first pass to 75 N.m (55 lb ft).
    2. Tighten the bolt a final pass an additional 50 degrees using J 45059  .

  12. Remove the J 42386-A  (1) and bolts. See Special Tools .
  13. Install the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement .
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