Aveo 2004-2005

Rear Main Seal

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Removal & Installation



  1. Disconnect the negative battery cable.
  2.  
  3. Remove the engine.
  4.  
  5. Remove the flywheel or drive plate bolts.
  6.  
  7. Remove the flywheel or drive plate
  8.  
  9. Remove the crankshaft rear oil seal.
  10.  

To install:

  1. Inspect the crankshaft seal area for any damage that may cause the seal to leak. If damage is evident, service or replace the crankshaft as necessary.
  2.  
  3. Coat the crankshaft seal area and the seal lip with engine oil.
  4.  
  5. Using a crankshaft seal replacement tool, install the seal. Tighten the bolts of the seal installer tool evenly so the seal is straight and seats without misalignment.
  6.  
  7. Install the flywheel or the drive plate. Tighten the flywheel bolts to 25 ft. lbs. (35 Nm). Plus an additional 30°, then another 15°. Tighten the drive plate bolts to 33 ft. lbs. (45 Nm).
  8.  
  9. Install the engine.
  10.  
  11. Connect the negative battery cable.
  12.  

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the engine.
  4.  
  5. Remove the flywheel or drive plate bolts.
  6.  
  7. Remove the flywheel or drive plate
  8.  
  9. Remove the crankshaft rear oil seal.
  10.  

To install:

  1. Inspect the crankshaft seal area for any damage that may cause the seal to leak. If damage is evident, service or replace the crankshaft as necessary.
  2.  
  3. Coat the crankshaft seal area and the seal lip with engine oil.
  4.  
  5. Using a crankshaft seal replacement tool (J-36972 or equivalent), install the seal. Tighten the bolts of the seal installer tool evenly so the seal is straight and seats without misalignment.

    Click image to see an enlarged view

    Fig. Using Seal Installer Tool J-36972 (1) to install the rear main seal.

  6.  
  7. Install the flywheel or the drive plate. Tighten the flywheel bolts to 25 ft. lbs. (35 Nm). Plus an additional 30°, then another 15°. Tighten the drive plate bolts to 33 ft. lbs. (45 Nm).
  8.  
  9. Install the engine.
  10.  
  11. Connect the negative battery cable.
  12.  

 
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