Equinox 2005-2007, Torrent 2006-07

Rear Main Seal

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Removal & Installation



  1. Remove the transaxle assembly.
  2.  
  3. Remove the engine flywheel bolts and flywheel.
  4.  
  5. Clean the engine flywheel bolt threads and bolt holes.
  6.  
  7. Clean and inspect the engine flywheel.
    NOTE
    Do not damage the crankshaft or seal bore.

  8.  
  9. Remove the engine flywheel.

    Click image to see an enlarged view

    Fig. Prying out the rear main seal

  10.  
  11. Remove the crankshaft rear oil seal. Pry the crankshaft rear oil seal out using a suitable tool.
  12.  

To install:


NOTE
Do not apply or use any oil lubrication on the crankshaft rear oil seal, or the seal installer. Do not touch the sealing lip of the oil seal once the protective sleeve is removed. Doing so will damage/deform the seal.


NOTE
Clean the crankshaft sealing surface with a clean, lint free towel. Inspect lead-in edge of crankshaft for burrs/sharp edges that could damage the rear main oil seal. Remove burrs/sharp edges with crocus cloth before proceeding.


NOTE
Notice the direction of the rear oil seal. The new design is a reverse style as opposed to what has been used in the past. "THIS SIDE OUT" has been stamped into the seal as shown in the graphic.



Click image to see an enlarged view

Fig. Rear main seal installation

  1. Carefully remove the protection sleeve from the new crankshaft rear oil seal.
  2.  
  3. Install the crankshaft rear oil seal onto tool J 34686, or equivalent by sliding the crankshaft rear oil seal over the mandrel using a twisting motion until the back of the crankshaft rear oil seal bottoms squarely against the collar of the tool.
  4.  
  5. Perform the following steps in order to install the crankshaft rear oil seal:
    1. Align the dowel pin of the tool with the dowel pin in the crankshaft.
    2.  
    3. Attach the tool to the crankshaft by hand, or tighten the attaching screws to 5 Nm (45 inch lbs.).
    4.  
    5. Turn the T-handle of the tool in order to engage allow the collar to push the seal into the bore. Turn the handle until the collar is tight against the engine block. Ensure that the seal is seated properly.
    6.  
    7. Loosen the T-handle until the handle comes to a stop.
    8.  
    9. Remove the attaching screws.

      Click image to see an enlarged view

      Fig. Flywheel installation

    10.  

  6.  
  7. Install the engine flywheel and bolts. Tighten bolts to 52 ft. lbs. (71 Nm).
  8.  
  9. Install the transaxle assembly.
  10.  
  11. Start the engine and check for leaks.
  12.  


NOTE
A Rear Main Oil Seal Remover Kit is required to remove the rear seal. The use of this kit allows the seal to be easily removed without nicking the crankshaft sealing surface. The kit includes a removal plate, adjustment pins and nuts, a force screw, self-tapping screws and lubricant.

  1. Remove the transaxle assembly.
  2.  
  3. Remove the engine flywheel bolts and flywheel.
  4.  
  5. Clean the engine flywheel bolt threads and bolt holes.
  6.  
  7. Clean and inspect the engine flywheel.
    NOTE
    Do not damage the crankshaft or seal bore.

  8.  
  9. Remove the engine flywheel.
  10.  
  11. Install the removal plate and both threaded adjustment pins and jam nuts into the back of the crankshaft flange. Secure the plate with the adjustment pins and jam nuts.

    Click image to see an enlarged view

    Fig. Install the removal plate (2) and both threaded adjustment pins and jam nuts (1) into the back of the crankshaft flange.

  12.  
  13. Install the self-tapping screws into perimeter holes on the removal plate and tighten them so they are flush to the plate.

    Click image to see an enlarged view

    Fig. Install the self-tapping screws (1) and tighten them so they are flush with the removal plate.

  14.  
  15. Apply a small amount of the kit-supplied lubricant to the force screw.
  16.  
  17. Install the force screw and back off both jam nuts. Continue to turn the force screw into the removal plate in order to remove the seal from the crankshaft.

    Click image to see an enlarged view

    Fig. Install the force screw (1) and then back off the jam nuts (2).

  18.  
  19. Once removed, back out and save all of the self-tapping screws and discard the old seal.

    Click image to see an enlarged view

    Fig. Turn the center force screw until the rear seal is removed.

  20.  

To install:


NOTE
A Rear Main Oil Seal Installer Kit is used to install the rear oil seal. The kit includes a mandrel, drive drum, drive nut, washer and bearing.

  1. Align the mandrel dowel pin to the dowel pin hole in the crankshaft.

    Click image to see an enlarged view

    Fig. Align the mandrel dowel pin to the dowel pin hole in the crankshaft.

  2.  
  3. Using a large flat-blade screwdriver, tighten the 2 mandrel screws to the crankshaft. Ensure the mandrel is snug to the crankshaft hub.
  4.  
  5. Install the rear main seal, with the protective nylon sleeve attached, onto the mandrel. The seal, if properly installed, will center on a step that protrudes from the center of the mandrel.
    WARNING
    Before installing the outer drive drum, bearing, washer, and drive nut onto the threaded shaft, apply a small amount of the extreme pressure lubricant provided in the tool kit.



    Click image to see an enlarged view

    Fig. Install the rear main seal (1), with the protective nylon sleeve attached (2), onto the mandrel.

  6.  
  7. Install the outer drive drum onto the mandrel.

    Click image to see an enlarged view

    Fig. Install the outer drive drum onto the mandrel.

  8.  
  9. Install the bearing, washer, and drive nut onto the threaded shaft.
  10.  
  11. Using a wrench, turn the drive nut on the mandrel, which will push the seal into the engine block bore. Turn the wrench until the drive drum is snug and flush against the engine block.

    Click image to see an enlarged view

    Fig. Use a wrench to turn the drive nut on the mandrel.

  12.  
  13. Loosen and remove the drive nut, washer, bearing, and drive drum. Discard the protective nylon sleeve.
  14.  
  15. Verify that the seal has seated properly.
  16.  
  17. Use a flat-blade screwdriver in order to remove the 2 attachment screws from the mandrel and remove the mandrel from the crankshaft hub.
  18.  
  19. Install the flywheel and tighten the bolts to 52 ft. lbs. (71 Nm).
  20.  
  21. Install the transaxle assembly.
  22.  
  23. Start the engine and check for leaks.
  24.  

 
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