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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 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.
IMPORTANT: When installing the oil pump, always replace the retainer between the oil pump and the shaft.
  1. Install the crankshaft oil deflector.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the crankshaft oil deflector nuts.

    Tighten:  Tighten the nuts to 50 N.m (37 lb ft).

    3. Fig 1: View Of Crankshaft Oil Deflector
    GM843909Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: During assembly, install NEW oil pump driveshaft retainer. Slightly heat the retainer above room temperature for ease of installation onto the oil pump driveshaft.
  3. Assemble the oil pump, driveshaft and a NEW retainer.
  4. Install the oil pump assembly. Position the oil pump onto the locating pins.
    5. Fig 2: View Of Oil Pump
    GM843907Courtesy of GENERAL MOTORS CORP.
  5. Install the oil pump bolt.

    Tighten:  Tighten the bolts to 75 N.m (56 lb ft).

  6. Install the oil pan. Refer to Oil Pan Replacement .
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