Mitsubishi Car 1999-05

Rear Main Seal

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Removal & Installation





Click image to see an enlarged view

Fig. Typical drive plate and rear main seal mounting

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the transaxle from the vehicle, as outlined in Section 7.
  4.  
  5. Remove the flywheel/driveplate assembly.
  6.  
  7. Remove the rear engine plate and the bellhousing cover.
  8.  
  9. If the crankshaft rear oil seal case is leaking, remove it. Otherwise, just remove the oil seal. Some engines have a separator that should also be removed.
  10.  

To install:

  1. Lubricate the inner diameter of the new seal with clean engine oil.
  2.  
  3. Install the oil seal in the crankshaft rear oil seal case using tool MD998376 or equivalent. Press the seal all the way in without tilting it. Force the oil separator into the oil seal case so the oil hole in the separator is downward.
  4.  
  5. Run a bead of sealer along any seams between the seal case and block. Install the seal case with a new gasket.
  6.  
  7. Install the flywheel/driveplate and transaxle.
  8.  
  9. Connect the negative battery cable and check for leaks.
  10.  
  11. Adjust oil level as necessary.
  12.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove the transaxle.
  4.  
  5. Remove the flywheel or flexplate from the crankshaft.
  6.  
  7. Carefully pry the seal out of the oil seal case without damaging the sealing surface of the crankshaft.
  8.  

To install:

  1. Apply engine oil to the lip of the new seal and install the seal in the case using the proper size seal driver.
  2.  
  3. Install the flywheel or flexplate.
  4.  
  5. Install the transaxle.
  6.  

  1. Remove or disconnect the following:

    Transaxle
     
    Clutch cover and disc
     
    Flywheel or flexplate from the crankshaft
     

  2.  
  3. Carefully pry the seal out of the oil seal case without damaging the sealing surface of the crankshaft.

    Click image to see an enlarged view

    Fig. Exploded view of a typical rear main seal

  4.  

To install:

  1. Apply engine oil to the lip of the new seal and install the seal in the case using the proper size seal driver.
  2.  
  3. Install or connect the following:

    Flywheel or flexplate
     
    Clutch cover and disc
     
    Transaxle
     

  4.  

 
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