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Home >> Pontiac >> 2002 >> Aztek AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (Unit Repair) >> Repair Instructions >> Bearing Selection >> Method B

Method B

IMPORTANT: Do not mix inserts of different nominal size in the same bearing bore.
  1. Clean the used bearing inserts.
  2. Install the used bearing inserts.
  3. Place a piece of gaging plastic across the entire bearing width.
  4. Install the bearing caps.
    NOTE: In order to prevent the possibility of cylinder block or crankshaft bearing cap damage, the crankshaft bearing caps are tapped into the cylinder block cavity using a brass, lead, or a leather mallet before the attaching bolts are installed. Do not use attaching bolts to pull the crankshaft bearing caps into the seats. Failure to use this process may damage a cylinder block or a bearing cap.
  5. Install the bearing cap bolts to specification using J 36660-A. 

    Important:  Do not rotate the crankshaft.

  6. Remove the bearing cap, leaving the gaging plastic in place. It does not matter whether the gaging plastic adheres to the journal or to the bearing cap.
    Fig 1: Measuring Bearing Clearances (Method B - Gaging Plastic)
    G01745542Courtesy of GENERAL MOTORS CORP.
  7. Measure the gaging plastic at its widest point with the scale printed on the gaging plastic package.
  8. Remove the gaging plastic.
  9. Select a set of bearing inserts that will produce the desired clearance.
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