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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 748 (Engine Mechanical - 3.1L (On-Vehicle)) >> Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the flywheel. Refer to Engine Flywheel Replacement  .

    Important:  Do not damage the crankshaft outside diameter (OD) surface or the chamfer while using the pry tool.

  2. Insert a screwdriver or a similar tool at an angle through the dust lip.
  3. Pry the seal out by moving the handle of the tool towards the end of the crankshaft pilot. Pry around the seal as required until you remove the seal.
    Fig 1: Removing Crankshaft Rear Oil Seal
    G01810992Courtesy of GENERAL MOTORS CORP.
  4. Inspect the inside diameter (ID) of bore for nicks or burrs. Repair the bore if needed.
  5. Inspect the crankshaft for burrs or nicks on the sealing surfaces. Repair or replace the crankshaft as needed.
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