Lower Crankcase Installation
Special Tools
J 45059 Angle Meter
- Install the upper crankshaft bearings and lubricate bearing surfaces with engine oil.
- Install the crankshaft on the journals.
- Install the lower bearing halves, without grooves, into the lower crankcase. Apply oil to bearing surfaces.
- Apply sealer GM P/N 12378521 (Canadian P/N 88901148) to the surfaces of the engine block to bedplate mating surfaces.
- Install the lower crankcase. Tap gently into place with a suitable tool, if necessary. Ensure the lower crankcase is aligned properly on the dowels.
- Install the NEW crankshaft bearing bolts in sequence finger tight.
- Do not forget the 2 rear outer bolts.