Piston, Connecting Rod, and Bearing Installation

WARNING: This page is about a different variant/trim than selected.

Tools Required

Position the crankshaft so the connecting rod journal is opposite the piston and connecting rod assembly being installed. This will aid in the installation of the connecting rod assembly.
Lubricate the cylinder wall with engine oil.
Install the connecting rod bearing inserts.
Lubricate the connecting rod bearing insert surface with engine oil.

Fig 1: Installing J 41507 To Connecting Rod

Courtesy of GENERAL MOTORS CORP.

Install J 41507 to the connecting rod. See Special Tools . Hand tighten the tool to the connecting rod.
Install J 8037 to the piston. See Special Tools .

NOTE: Guide the lower connecting rod end carefully to avoid damaging the crankshaft journal.

Fig 2: Installing Piston & Connecting Rod Assembly Into Engine

Courtesy of GENERAL MOTORS CORP.

Use J 8037 to compress the piston rings for installation of the piston and connecting rod assembly. See Special Tools .
Install the piston and connecting rod assembly into the engine.
IMPORTANT: Ensure the arrow on top of the piston or the markings made during removal face towards the front of the engine or are in the same location as when removed.
Use J 41507 to pull the connecting rod into place. See Special Tools .
Remove J 41507 . See Special Tools .

Fig 3: Removing/Installing Connecting Rod Bolts & Cap

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Special Fastener Notice in Cautions and Notices.

NOTE: Refer to Fastener Notice .

Install the connecting rod bearing cap bolts.
Tighten: Tighten the connecting rod bearing cap bolts to 27 N.m (20 lb ft) + 50 degrees using J 45059 .
Pry the connecting rod back and forth and check for binding. If necessary loosen and retighten the connecting rod bearing cap.

Fig 4: Measuring Connecting Side Clearance

Courtesy of GENERAL MOTORS CORP.