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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 344 (Engine Mechanical - 5.3L, 6.0L & 6.2L - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Timing Chain, Crankshaft Sprocket, Camshaft Position Actuator, and Solenoid Valve Replacement (L99) >> Installation Procedure

Installation Procedure

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    Fig 1: Crankshaft Key And Keyway
    GM156149Courtesy of GENERAL MOTORS CORP.
  1. Install the key into the crankshaft keyway, if previously removed.
    2. Fig 2: 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: 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: Crankshaft Sprocket And Installer
    GM1658237Courtesy of GENERAL MOTORS CORP.
  4. Use the J 41478  crankshaft front oil seal installer (1) and the J 41665  crankshaft balancer and sprocket installer (2) in order to install the crankshaft sprocket. Install the sprocket onto the crankshaft until fully seated against the crankshaft flange.
    5. Fig 5: Timing Belt Tensioner Retaining Pin
    GM1658249Courtesy of GENERAL MOTORS CORP.
  5. Compress the timing chain tensioner guide and install the EN 46330  timing belt tensioner retaining pin.
    6. Fig 6: Timing Chain Tensioner
    GM1658251Courtesy of GENERAL MOTORS CORP.
  6. Install the timing chain tensioner (232) and bolts (231).

    Tighten 

    Tighten the bolts to 25 (18 lb ft).

  7. Install the camshaft position actuator. Refer to Camshaft Position Actuator Replacement .
    8. Fig 7: Flywheel Holding Tool
    GM1658136Courtesy of GENERAL MOTORS CORP.
  8. Remove the J 42386-A  flywheel holding tool (1) and bolts.
  9. Install the starter motor. Refer to Starter Replacement .
  10. Install the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement .
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