Tools Required

J 36660-A (SA9140E) Torque Angle Meter

1. Install the crankshaft bearings and lubricate bearing surfaces with engine oil.
Fig 1: View Of Crankshaft Bearing Inserts
Courtesy of GENERAL MOTORS CORP.
2. Install the crankshaft on the journals.
Fig 2: Installing Crankshaft On Journals
Courtesy of GENERAL MOTORS CORP.
3. Apply sealer P/N 21019581, to the surfaces of the engine block to bedplate mating surfaces.
Fig 3: Applying Sealer To Surfaces Of Engine Block To Bedplate Mating Surfaces
Courtesy of GENERAL MOTORS CORP.
4. Install the lower bearing halves, without grooves, into the lower crankcase. Apply oil to bearing surfaces.
Fig 4: Identifying Crankshaft Bearing Inserts
Courtesy of GENERAL MOTORS CORP.
5. Install the lower crankcase. Tap gently into place with a suitable tool if necessary. Ensure it is aligned properly on the dowels.
Fig 5: View Of Upper & Lower Crankcase W/Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice in Cautions and Notices.
6. Install the crankshaft bearing bolts in sequence finger tight.
   1. Tighten the crankshaft bearing bolts in sequence.

      Tighten:  Tighten the crankshaft bearing bolts to 20 N.m (15 lb ft).

   2. Tighten the crankshaft bearing bolts in sequence.

      Tighten:  Tighten the crankshaft bearing bolts 70 degrees using the J 36660-A (SA9140E).

Fig 6: Identifying Crankshaft Bearing Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
7. Tighten the lower crankcase perimeter bolts in sequence.

   Tighten:  Tighten the lower crankcase perimeter bolts to 25 N.m (18 lb ft).

Fig 7: Lower Crankcase Perimeter Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.