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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 >> Installation Procedure

Installation 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. Apply engine oil to the inside diameter (ID) and the outside diameter (OD) of the new seal.
  2. Slide the new seal over the mandrel until the back of the seal bottoms squarely against the collar of the tool.
  3. Complete the following steps in order to install the crankshaft rear oil seal.
    1. 3.1. Align the dowel pin of the J 34686  with the dowel pin in the crankshaft.
      CAUTION: Refer to FASTENER NOTICE in Cautions and Notices.
    2. 3.2. Attach the J 34686  to the crankshaft by hand or tighten the attaching screws to 5 N.m (45 lb in).
    3. 3.3. Turn the T-handle of the J 34686  so that the collar pushes the seal into the bore.

      Turn the handle until the collar is tight against the case. Ensure that the seal is seated properly.

    4. 3.4. Loosen the T-handle of the J 34686  until the handle comes to a stop.

      Ensure that the collar is in the proper position in order to install another new seal.

    5. 3.5. Remove the attaching screws.
    6. 3.6. Inspect the seal. Ensure that the seal is seated squarely in the bore.
    4. Fig 1: Installing Crankshaft Rear Oil Seal
    G01810993Courtesy of GENERAL MOTORS CORP.
  4. Install the flywheel. Refer to Engine Flywheel Replacement  .
  5. Inspect for proper fluid levels.
  6. Inspect for leaks.
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