Crankshaft and Bearing Removal

Special Tools

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

For equivalent regional tools, refer to Special Tools .

Fig 1: CKP Sensor, Bolt & O-Ring
Courtesy of GENERAL MOTORS COMPANY
NOTE:
• 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.
1. Remove the crankshaft position (CKP) sensor bolt (702).
2. Remove the CKP sensor (701).
3. Remove the O-ring (750) from the sensor, as required.
Fig 2: Identifying Bearing Cap Bolts & Studs
Courtesy of GENERAL MOTORS COMPANY
4. Remove and discard the crankshaft bearing cap M8 bolts (127).
5. Remove and discard the bearing cap M10 bolts (129) and studs (128).
Fig 3: View Of Crankshaft Bearing Cap Bolts (M10)
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

6. Install the J 41818  remover (2). Tighten the J 41818  remover (2) bolts to 11 N.m (100 lb in).
7. Install the J 6125-1B  hammer (1) to the J 41818  remover (2) in order to remove the crankshaft bearing caps.
Fig 4: View Of Crankshaft Main Bearing Caps
Courtesy of GENERAL MOTORS COMPANY
8. Remove the bearing caps.
Fig 5: View Of Crankshaft & Engine Block
Courtesy of GENERAL MOTORS COMPANY
9. Remove the crankshaft.
Fig 6: View Of Camshaft
Courtesy of GENERAL MOTORS COMPANY
NOTE:

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.

10. Lay the crankshaft onto 2 wooden V-blocks or other protective surface.
Fig 7: View Of Crankshaft Bearings & Bearing Caps
Courtesy of GENERAL MOTORS COMPANY
11. Remove the crankshaft bearings from the bearing caps and the engine block.
12. Mark, sort, or organize the crankshaft bearings so they may be installed to their original position and location. Refer to Separating Parts .