Installation Procedure

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Apply oil to the crankshaft bearing surfaces.

Fig 1: Applying Sealer To Engine Block Bedplate Mating Surfaces

Courtesy of GENERAL MOTORS CORP.

Apply a 2-5 mm (0.08-0.20 in) bead (a) of sealer GM P/N 12378521 (Canadian P/N 88901148) to the surface of the engine block-to-lower crankcase mating surface.

Fig 2: View Of Upper & Lower Crankcase W/Bolts

Courtesy of GENERAL MOTORS CORP.

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

Fig 3: Identifying Crankshaft Bearing Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

Install the NEW 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 using the J 45059 .
  Tighten: Tighten the crankshaft bearing bolts to 70 degrees using the J 45059 .

Fig 4: Lower Crankcase Perimeter Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

Tighten the lower crankcase perimeter bolts in sequence.
Tighten: Tighten the lower crankcase perimeter bolts to 25 N.m (18 lb ft).
Install the engine front cover. Refer to Engine Front Cover and Oil Pump Installation .
Install the crankshaft balancer. Refer to Crankshaft Balancer Installation
Install the engine oil pan. Refer to Oil Pan Installation .
Install the engine. Refer to Engine Replacement for the 2.2L engine.