Special Tools

J 45059:  Angle Meter

For equivalent regional tools, refer to Special Tools .

Fig 1: View Of Crankshaft Bearing Inserts
Courtesy of GENERAL MOTORS CORP.
1. Install the upper crankshaft bearings and lubricate bearing surfaces with engine oil.
Fig 2: Installing Crankshaft On Journals
Courtesy of GENERAL MOTORS CORP.
2. Install the crankshaft on the journals.
Fig 3: Identifying Crankshaft Bearing Inserts
Courtesy of GENERAL MOTORS CORP.
3. Install the lower bearing halves, without grooves, into the lower crankcase. Apply oil to bearing surfaces.
Fig 4: Applying Sealer To Surfaces Of Engine Block To Bedplate Mating Surfaces
Courtesy of GENERAL MOTORS CORP.
4. Apply sealer to the surfaces of the engine block to bedplate mating surfaces. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Fig 5: View Of Upper & Lower Crankcase W/Bolts
Courtesy of GENERAL MOTORS CORP.
5. Install the lower crankcase. Tap gently into place with a suitable tool, if necessary. Ensure the lower crankcase is aligned properly on the dowels.
Fig 6: Identifying Crankshaft Bearing Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fastener Caution .
6. Install the NEW crankshaft bearing bolts in sequence finger tight.
   1. Tighten the crankshaft bearing bolts in sequence to 20 N.m (15 lb ft) .
   2. Using the J 45059:  meter , tighten the crankshaft bearing bolts in sequence to 77 degrees .
Fig 7: Lower Crankcase Perimeter Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
NOTE: Do not forget the 2 rear outer bolts.
7. Install the lower crankcase perimeter bolts. Tighten the lower crankcase perimeter bolts in sequence to 25 N.m (18 lb ft).