47. Lower Crankcase Installation

- TOOLS REQUIRED
- SA9140NE Torque Angle Meter





1. Install upper crankshaft bearings and lubricate bearing surfaces with engine oil.





2. Install crankshaft on journals.

IMPORTANT: The lower bearing halves do not have oil grooves.





3. Install lower bearing halves (without grooves) into lower crankcase. Apply oil to bearing surfaces.





4. Apply sealer GM P/N 12346286 or equivalent to surfaces of engine block to bedplate mating surfaces.





5. Install the lower crankcase. Tap gently into place with a suitable tool if necessary. Ensure it is aligned properly on the dowels.





6. Install crankshaft bearing bolts using tightening sequence.
- Torque: 20 Nm (15 ft. lbs.)





7. Tighten lower crankcase perimeter bolts using tightening sequence.
- Torque: 20 Nm (15 ft. lbs.)