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Home >> Chevrolet >> 2011 >> Corvette ZR-1 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 6.2L Or 7.0L - Repair Instructions - On Vehicle (2 Of 2) >> Camshaft Timing Chain and Sprocket Replacement (LS3) >> Removal Procedure

Removal Procedure

    Fig 1: View Of Camshaft Sprocket, Timing Chain & Sprocket Bolt
    GM1658175Courtesy of GENERAL MOTORS CORP.
    CAUTION: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
  1. Remove the oil pump. Refer to Oil Pump, Screen and Crankshaft Oil Deflector Removal (6.2L LS3) .
  2. Remove and discard the camshaft sprocket bolt (206).
  3. Remove the camshaft sprocket (205) and timing chain (208).
    4. Fig 2: View Of Timing Chain Tensioner & Bolts
    GM1658178Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolts (231) and timing chain tensioner (232).
    5. Fig 3: View Of Crankshaft Sprocket Special Tools
    GM1658180Courtesy of GENERAL MOTORS CORP.
  5. Use the J 41816-2  (1), the J 41558  (2), bolts (3), and the J 8433  (4) in order to remove the crankshaft sprocket. See Special Tools .
    6. Fig 4: View Of Crankshaft Sprocket
    GM1658182Courtesy of GENERAL MOTORS CORP.
  6. Remove the crankshaft sprocket (207).
    7. Fig 5: Crankshaft Sprocket Key & Keyway
    GM156149Courtesy of GENERAL MOTORS CORP.
  7. Remove the crankshaft sprocket key, as required.
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