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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1095 (Engine Mechanical - 3.4L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
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.
    Fig 1: Installing Crankshaft Rear Oil Seal
    GM1537548Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: 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 Carefully remove the protection sleeve from the new crankshaft rear oil seal graphic.
  1. Carefully remove the protection sleeve from the new crankshaft rear oil seal.
  2. Install the crankshaft rear oil seal onto the J34686 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.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Perform the following steps in order to install the crankshaft rear oil seal.
    • Align the dowel pin of the J 34686  with the dowel pin in the crankshaft. See Special Tools and Equipment .
    • Attach the J 34686  to the crankshaft by hand, or tighten the attaching screws to 5 N. See Special Tools and Equipment .m (45 lb in).
    • Turn the T-handle of the J 34686  in order to engage allow the collar to push the seal into the bore. See Special Tools and Equipment . Turn the handle until the collar is tight against the engine block. Ensure that the seal is seated properly.
    • Loosen the T-handle until the T-handle comes to a stop.
    • Remove the attaching screws.
  4. Install the flywheel. Refer to Engine Flywheel Replacement .
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