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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 638 (Engine Mechanical - 4.0L (Unit Repair)) >> Repair Instructions >> Crankshaft and Bearings Removal >> Crankshaft Bearing Removal Procedure

Crankshaft Bearing Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Prepare a piece of cardboard, or equivalent, numbered one to five for bearing identification. Main bearing journals are numbered from the front of the engine.
  2. Remove the upper crankshaft bearing halves from the cylinder block. Note the position of the thrust bearing (1) at the number three journal.
  3. Place the upper main bearing halves on the cardboard in the correct positions. Note that the number three bearing is the thrust bearing.
    Fig 1: Removing Upper Crankshaft Bearing Halves From Cylinder Block
    G01815838Courtesy of GENERAL MOTORS CORP.
  4. Remove the lower main bearing halves from the lower crankcase.
  5. Place the lower main bearing halves in the correct positions on the cardboard.
    Fig 2: Removing Lower Main Bearing Halves From Lower Crankcase
    G01815839Courtesy of GENERAL MOTORS CORP.
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