Crankshaft and Bearing Installation

Special Tools 

EN-45059  Torque Angle Sensor Kit

For equivalent regional tools, refer to Special Tools 

Fig 1: Crankshaft Bearing Clip
Courtesy of GENERAL MOTORS COMPANY
NOTE:

Inspect the installation position.

1. Install the crankshaft bearing clips, oil bearing clips.
2. Install the crankshaft.
NOTE:

Inspect the installation position.

3. Install the crankshaft bearing caps 1-4.
   • Oil bearing clips.
   • Install the 8 NEW crankshaft bearing cap bolts.
NOTE:

Inspect the installation position.

4. Install the crankshaft bearing cap.
   1. Apply black adhesive sealing compound to the grooves of the rear crankshaft bearing cap.
   2. Install the 2 NEW crankshaft bearing cap bolts.
Fig 2: Crankshaft Bearing Cap Bolts
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

CAUTION:

Refer to Torque-to-Yield Fastener Caution .

5. Tighten the bolts for the crankshaft bearing caps (1) in 3 passes using the EN-45059  sensor kit:
   • First pass to 50 N.m (37 lb ft)
   • Second pass to 45°
   • Third pass to 15°
Fig 3: Connecting Rod Bearing Caps
Courtesy of GENERAL MOTORS COMPANY
NOTE:

Inspect the installation position.

6. Install the connecting rod bearing caps 2 and 3 (1) and oil the bearing clips.
7. Install 4 NEW connecting rod bearing cap bolts and tighten in 3 passes use the EN-45059  sensor kit:
   • First pass to 35 N.m (26 lb ft)
   • Second pass to 45°
   • Third pass to 15°
Fig 4: Connecting Rod Bearing Caps
Courtesy of GENERAL MOTORS COMPANY
8. Turn the crankshaft through 180°.
NOTE:

Inspect the installation position.

9. Install the connecting rod bearing caps 1 and 4 (1) and oil the bearing clips.
10. Install 4 NEW connecting rod bearing cap bolts and tighten in 3 passes use the EN-45059  sensor kit:
    • First pass to 35 N.m (26 lb ft)
    • Second pass to 45°
    • Third pass to 15°