Crankshaft and Bearings Removal

Tools Required

• J 6125-1B  Slide Hammer. See Special Tools .
• J 41818  Crankshaft Bearing Cap Remover. See Special Tools .

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 (CKP) sensor bolt.
2. Remove the CKP sensor.
   Fig 1: View Of CKP Sensor & Bolt

   Courtesy of GENERAL MOTORS CORP.
3. Remove the bearing cap M8 bolts.
   Fig 2: View Of Bearing Cap Bolts & Studs

   Courtesy of GENERAL MOTORS CORP.
4. Remove the bearing cap M10 bolts and studs.
NOTE: Refer to Fastener Notice .
5. Install the J 41818  . See Special Tools .

   Tighten:  Tighten the J 41818  bolts to 11 N. See Special Tools .m (100 lb in).

6. Install the J 6125-1B  to the J 41818  in order to remove the crankshaft bearing caps. See Special Tools .
   Fig 3: View Of J 6125-1B & J 41818 Removing Main Bearing Cap

   Courtesy of GENERAL MOTORS CORP.
7. Remove the bearing caps.
   Fig 4: View Of Crankshaft Main Bearing Caps

   Courtesy of GENERAL MOTORS CORP.
8. Remove the crankshaft.
   Fig 5: View Of Crankshaft & Engine Block

   Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Use care when handling the crankshaft. Avoid damage to the CKP sensor reluctor ring teeth. Nicks, burrs or other damage to the teeth may effect on-board diagnostics (OBD) II system performance.
Fig 6: View Of Crankshaft
Courtesy of GENERAL MOTORS CORP.
9. Lay the crankshaft onto 2 wooden V-blocks or other protective surface.
10. Remove the crankshaft bearings from the bearing caps and the engine block.
    Fig 7: View Of Crankshaft Bearings & Bearing Caps

    Courtesy of GENERAL MOTORS CORP.
11. Mark, sort, or organize the crankshaft bearings so they may be installed to their original position and location. Refer to Separating Parts .