Crankshaft and Bearings Removal

Tools Required 

• J 6125-1B  Slide Hammer
• J 41818  Crankshaft Bearing Cap Remover

Important:  The crankshaft bearing caps are machined with the engine block for the proper clearances. Mark or identify each crankshaft bearing cap location and direction before removal. The crankshaft bearing caps MUST be installed to their original position and direction.

Do not use the bearing cap M8 side bolts again.

Remove the bearing cap M8 side bolts prior to cap removal.

1. Remove the crankshaft position sensor bolt.
2. Remove the crankshaft position sensor.
   Fig 1: Removing Crankshaft Position Sensor

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3. Remove the crankshaft bearing cap M8 side bolts.
4. Remove the bearing cap M10 bolts and bolt/studs. Note the M10 bolt/stud locations.
   Fig 2: Removing Crankshaft Bearing Cap Bolts

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   NOTE: Refer to FASTENER NOTICE .
5. Install the J 41818  .
   Fig 3: Installing J 41818

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   Tighten 

   Tighten the J 41818  bolts to 11 N.m (100 lb in).

6. Install the J 6125-1B  to the J 41818  in order to remove the crankshaft bearing caps.
7. Remove the bearing caps.
   Fig 4: Removing Bearing Caps

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8. Remove the crankshaft.
   Fig 5: Removing Crankshaft

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   Important:  Use care when handling the crankshaft. Avoid damage to the crankshaft position sensor reluctor ring teeth. Nicks, burrs or other damage to the teeth may effect On-Board Diagnostics (OBD) II system performance.

9. Lay the crankshaft onto 2 wooden V-blocks or other protective surface.
   Fig 6: View Of Crankshaft

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10. Remove the crankshaft bearings from the bearing caps and the engine block.
11. Mark, sort, or organize the crankshaft bearings so they may be installed to their original position and location. Refer to SEPARATING PARTS  .
    Fig 7: Removing Crankshaft Bearings

    Courtesy of GENERAL MOTORS CORP.