Crankshaft and Bearing Installation

Special Tools 

EN-45059-A  Angle Meter

Equivalent regional tools: Special Tools .

1. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   • Ensure that the guide lugs (1) are properly seated in their hole (4).
   • If the old crankshaft bearing is reused, install it in the same position as removed.

   Crankshaft Upper Bearing (2, 3) - Install [3x]

   1. For the selection of the right bearing measure the crankshaft bearing journals. Crankshaft and Bearing Cleaning and Inspection 
   2. Also measure the bearing bore diameter in the cylinder block. Engine Block Cleaning and Inspection 
   3. For the selection of the right bearing see also the selection of the crankshaft bearing table. Crankshaft and Bearing Cleaning and Inspection 

2. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   If the old crankshaft bearing is reused, install it in the same position as removed.

   Crankshaft Thrust Bearing (1) - Install

3. Courtesy of GENERAL MOTORS COMPANY

   Crankshaft (1) - Install

4. Courtesy of GENERAL MOTORS COMPANY

   Check the 2 crankshaft thrust bearings (1) for proper seat.

5. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   • Ensure that the guide lugs (1) are properly seated.
   • If the old crankshaft bearing was reused, set it in as removed.

   Crankshaft Lower Bearing (2) - Install [4x]

6. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   Install the components in the same position as removed.

   Crankshaft Bearing Cap (2) - Install [4x]

7. Crankshaft Bearing Cap Bolt (1) - Install NEW [8x]
8. Fig 1: Identifying Crankshaft Bearing Cap Bolts With Tightening Sequence

   Courtesy of GENERAL MOTORS COMPANY
   CAUTION:

   Fastener Caution

   CAUTION:

   Torque-to-Yield Fastener Warning

   Tighten in sequence

9. First Pass: 20 N.m (15 lb ft)
10. Final Pass: 160 degrees. Use the special tool: EN-45059-A  Angle Meter.