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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1618 (Engine Mechanical - 4.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Housing Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: When installing a NEW housing the seal will come with the housing. If reusing the housing and then installing a NEW seal follow the instructions for installing the housing and than refer to Crankshaft Rear Oil Seal Replacement  to install the seal.
  1. Install a NEW housing gasket.
    Fig 1: Housing Gasket
    G02106040Courtesy of GENERAL MOTORS CORP.
  2. Install the NEW housing with the seal using the following procedure.
    IMPORTANT: Do not oil or grease the seal lip or the crankshaft seal area.
    1. 2.1. Leave the sleeve in the seal and use the sleeve as a guide to ease installing the seal lip over the end of the crankshaft.
    2. 2.2. Push the housing fully onto the crankshaft until the housing is against the seal gasket and the engine.
    3. 2.3. Remove the sleeve.
    NOTE: Refer to FASTENER NOTICE .
  3. Install the crankshaft rear oil seal housing bolts and nut.

    Tighten 

    Tighten the bolts and nut to 12 N.m (106 lb in).

    Fig 2: Crankshaft Rear Oil Seal Housing Bolts & Nut
    G02106041Courtesy of GENERAL MOTORS CORP.
  4. Install the engine flywheel. Refer to Engine Flywheel Replacement .
  5. Install the oil pan. Refer to Oil Pan Replacement .
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