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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 357 (ENGINE MECHANICAL - 5.3L)REPAIR INSTRUCTIONSON-VEHICLE REPAIR INSTRUCTIONSTIMING CHAIN AND SPROCKETS REPLACEMENT (FIRST DESIGN)INSTALLATION PROCEDURE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Installation Procedure

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Installation Procedure
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
    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
    GM1402075Courtesy of GENERAL MOTORS CORP.
  3. Install the crankshaft sprocket onto the front of the crankshaft. Align the crankshaft key with the crankshaft sprocket keyway.
    4. Fig 4: Using J 41665 To Install Crankshaft Sprocket
    GM63199Courtesy of GENERAL MOTORS CORP.
  4. Using the J 41665  , install the crankshaft sprocket onto the crankshaft until fully seated against the crankshaft flange. See Special Tools .
  5. Rotate the crankshaft sprocket until the alignment mark is in the 12 o'clock position.
    Fig 5: Timing Chain Dampener & Bolts
    GM1402069Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.