Corvette 2005-2008

Flywheel

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Removal & Installation




NOTE
For manual transmission applications, note the position and direction of the engine flywheel before removal. The flywheel does not use a locating pin for alignment. Mark or scribe the end of the crankshaft and the flywheel before component removal. The engine flywheel must be reinstalled to the original position and direction. The engine flywheel will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a 3 stage tightening process. DO NOT remove the prop shaft hub or flex plate from the automatic transmission engine flywheel. The flywheel, prop shaft hub, and flex plate are balanced as an assembly. If service is required, the entire flywheel assembly should be replaced.

  1. Remove the catalytic converter.
  2.  
  3. Remove the transmission.
  4.  
  5. Remove the clutch assembly.
  6.  
  7. Mark or scribe the end of the crankshaft and the flywheel.
  8.  
  9. Remove the flywheel bolts.
  10.  
  11. Remove the flywheel.
  12.  

To install:

  1. Align the mark or scribe on the crankshaft with the mark or scribe on the existing flywheel.
  2.  
  3. Install the engine flywheel.
  4.  
  5. Apply threadlock to the threads of the flywheel bolts.
  6.  
  7. Install the flywheel bolts until snug. Then torque the bolts in sequence as follows:
    1. For all models equipped with a 6.0L or 6.2L Engine:

      Tighten the bolts in sequence to 15 ft. lbs. (20 Nm)
       
      Tighten a second pass in sequence to 37 ft. lbs. (50 Nm)
       
      Tighten the engine flywheel bolts a final pass in sequence to 74 ft. lbs. (100 Nm)
       

    2.  
    3. For all models equipped with a 7.0L Engine:

      Tighten the engine flywheel bolts a first pass in sequence to 22 ft. lbs. (30 Nm)
       
      Tighten the engine flywheel bolts a final pass in sequence to 40 degrees

      Click image to see an enlarged view

      Fig. Flywheel torque sequence

       

    4.  

  8.  
  9. Install the clutch assembly, if equipped with a manual transmission.
  10.  
  11. Install the transmission.
  12.  
  13. Install the catalytic converter.
  14.  

 
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