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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical - 3.5L - Repair Instructions - On Vehicle) >> Camshaft Timing Chain and Sprocket Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: Identifying Timing Marks & Chain Tensioners
    GM1557849Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  2. Align the crankshaft timing mark (1) to the timing mark on the bottom of the timing chain tensioner (2).
  3. Align the timing mark on the camshaft position actuator gear (4) with the timing mark on top of the timing chain tensioner (3).
    4. Fig 2: View Of Timing Chain & Sprockets
    GM1557703Courtesy of GENERAL MOTORS CORP.
  4. Remove the camshaft position actuator bolts.
  5. Remove the timing chain, camshaft position actuator, and crankshaft sprockets.
    6. Fig 3: View Of Timing Chain Tensioner & Bolts
    GM1557708Courtesy of GENERAL MOTORS CORP.
  6. Remove the timing chain tensioner bolts.
  7. Remove the timing chain tensioner.
    8. Fig 4: View Of Crankshaft Sprocket
    GM760405Courtesy of GENERAL MOTORS CORP.
  8. Remove the crankshaft sprocket.
    9. Fig 5: View Of Timing Chain Dampener & Bolts
    GM59271Courtesy of GENERAL MOTORS CORP.
  9. Remove the timing chain dampener bolts.
  10. Remove the timing chain dampener.
    11. Fig 6: View Of Camshaft & Actuator Filter
    GM1608915Courtesy of GENERAL MOTORS CORP.
  11. Remove and discard the camshaft position actuator filter (1) from the end of the camshaft.
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