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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pump Drive Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply grease to the oil pump drive gear for ease of assembly.
    2. IMPORTANT: Correct alignment of the oil pump drive and oil pump driveshaft is critical. Make sure both components mate correctly, or engine damage may occur.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Line up the oil pump drive, making sure that the oil pump is fully seated in the engine block.
  3. Install the oil pump, making sure that the oil pump drive is fully seated in the engine block.

    Tighten:  Tighten the bolt to 25 N.m (18 lb ft).

    4. Fig 1: View Of Oil Pump Drive
    GM843883Courtesy of GENERAL MOTORS CORP.
  4. Install the intake manifold. Refer to Intake Manifold Replacement .
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