Piston, Connecting Rod and Bearing Installation

Special Tools 

EN-45059  Angle Meter

For equivalent regional tools, refer to Special Tools .

1. Lubricate the piston rings, piston, inner cylinder bore surface and a piston ring compressor with clean engine oil.
2. Install the piston ring compressor in order to compress the piston rings.
3. Install the piston and connecting rod assembly (4).
   Fig 1: Connecting Rod Assembly, Connecting Rod Bearing And Connecting Rod Cap

   Courtesy of GENERAL MOTORS COMPANY
4. Install the connecting rod bearing (3).
5. Install the connecting rod cap (1).
6. Install NEW connecting rod bolts (2) and tighten a first pass to 35 N.m (26 lb ft).
   CAUTION: Refer to Fastener Caution .
   CAUTION: Refer to Torque-to-Yield Fastener Caution .
7. Tighten the NEW connecting rod bolts a second pass to an additional 45 degrees, using the EN-45059  meter.
8. Tighten the NEW connecting rod bolts a final pass to an additional 15 degrees, using the EN-45059  meter.
9. Assemble the caps and connecting rods in the marked position.
10. Rotate the crankshaft to a position where the connecting rod bolts are easy accessible.