- Apply engine oil to the crankshaft bearing
inserts.
- Install the upper crankshaft bearing inserts.
Important: The number 3 crankshaft bearing insert is specific to the number three
crankshaft journal.
- The number 3 crankshaft bearing insert does not have a groove.
- Install the crankshaft.
- Install the lower crankshaft bearing inserts
to the crankshaft bearing caps.
| • | Make sure that the inserts are the correct size. |
| • | Apply engine oil to the inserts. |
- Install the crankshaft bearing caps to
the engine block.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the crankshaft bearing cap bolts to the engine block.
Tighten
Tighten the crankshaft bearing cap bolts first to 50 N·m
(37 lb ft).
- Before installing the rear crankshaft
bearing cap, coat the face of the block where it mates to the cap with sealer
GM P/N 1052942.
- Measure the crankshaft end play using
the following procedure:
| 9.1. | Firmly thrust the crankshaft rearward. |
| 9.2. | Firmly thrust the crankshaft forward. |
| 9.3. | This will align the crankshaft bearing and the crankshaft thrust
surfaces. |
Tighten
Tighten the crankshaft bearing cap bolts to 95 N·m (70 lb ft).
- Measure the crankshaft end play at the
front end of the rear crankshaft bearing with a feeler gauge.
| • | The crankshaft should still be wedged forward. |
| • | The proper clearance is 0.0511-0.1780 mm (0.002-0.007 in). |
