Balance Shaft (4.3L - If Equipped): Installation

1. Apply oil to balance shaft bearings. Using Installers (J-36996 and J-8092), install balance shaft in block. See Fig 1. Install lifter retainer (if equipped). Ensure balance shaft turns.
2. Install thrust plate. Install balance shaft gears. Ensure timing marks on balance shaft gears are aligned. See Fig 2. Install balance shaft timing gear bolt. Tighten bolt to 15 ft. lbs. (20 N.m). Then tighten bolt an additional 35 degrees. To complete installation, reverse removal procedure.

Fig 1: Installing Balance Shaft

Courtesy of GENERAL MOTORS CORP.

Fig 2: Aligning Timing Marks For Balance Shaft Gears

Courtesy of GENERAL MOTORS CORP.