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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain and Sprockets Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Camshaft Sprocket, Timing Chain & Bolts
    GM1150711Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  2. Aligned the timing marks on the camshaft and crankshaft sprockets.
  3. Remove the camshaft sprocket bolts.
  4. Remove the camshaft sprocket and timing chain.
    5. Fig 2: Removing Crankshaft Sprocket Using J 42846
    GM639535Courtesy of GENERAL MOTORS CORP.
  5. Install the J 42846  (1) into the end of the crankshaft. See Special Tools .
  6. Remove the crankshaft sprocket using a suitable three jaw puller.
  7. Clean and inspect the timing chain and sprockets. Refer to Timing Chain and Sprockets Cleaning and Inspection .
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