H3 2006

Flexplate (Driveplate)

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Removal & Installation



3.5L & 3.7L Engines

Specific to:

Hummer H3 2006-2010

  1. Remove the transmission.
  2.  
  3. Remove and discard the flywheel bolts.
  4.  
  5. Remove the flywheel.
  6.  
  7. Clean and inspect the flywheel.

    Click image to see an enlarged view

    Fig. Flywheel-automatic transmission

  8.  

To install:

  1. Position the flywheel to the crankshaft.
  2.  
  3. Install the new flywheel bolts and tighten to 30 ft. lbs. (40 Nm) plus an additional 45 degrees using the J 45059.
  4.  
  5. Install the transmission.
  6.  

5.3L Engine

Specific to:

Hummer H3 2006-2010

  1. Remove the automatic transmission.
    NOTE
    Note the position and direction of the engine flywheel before removal.

  2.  
  3. Remove the flywheel bolts.
  4.  
  5. Remove the flywheel.

    Click image to see an enlarged view

    Fig. Flywheel-automatic transmission

  6.  
  7. Install two M11x1.5 mm bolts (1) to the threaded holes of the spacer, if applicable.
  8.  
  9. Rotate the bolts clockwise to remove the spacer.
  10.  
  11. Remove the spacer from the rear of the crankshaft, if applicable.

    Click image to see an enlarged view

    Fig. Remove spacer-automatic transmission

  12.  

To install:


NOTE
The flywheel does not use a locating pin for alignment and will not initially seat against the crankshaft flange or spacer, if applicable, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a three stage tightening process.

  1. Install the spacer, if applicable, onto the rear of the crankshaft.
    NOTE
    Longer flywheel bolts must be used on applications using a flywheel spacer.

  2.  
  3. Install the flywheel and bolts to the crankshaft.
  4.  
  5. Apply thread lock to the threads of the flywheel bolts.
  6.  
  7. Tighten the flywheel bolts:
    1. Tighten the bolts (1-6) a first pass in sequence to 15 ft. lbs. (20 Nm).
    2.  
    3. Tighten the bolts (1-6) a second pass in sequence to 37 ft. lbs. (50 Nm).
    4.  
    5. Tighten the bolts (1-6) a final pass in sequence to 74 ft. lbs. (100 Nm).
    6.  

  8.  
  9. Install the automatic transmission.

    Click image to see an enlarged view

    Fig. Flywheel bolt tightening sequence-automatic transmission

  10.  

 
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