General Motors — Balance Shaft Installation
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Procedure
- Apply oil to balance shaft bearings. Using Installers (J-36996 and J-8092), install balance shaft in block. Install lifter retainer if equipped. Ensure balance shaft turns.
- Install thrust plate. Install balance shaft gears. Ensure timing marks on balance shaft gears are aligned.
- Install balance shaft timing gear bolt. Tighten bolt to 15 ft. lbs. (20 N.m). Then tighten bolt an additional 35 degrees.
- Reverse removal procedure to complete installation.
Tools required
- Installers (J-36996 and J-8092) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten bolt to 15 ft. lbs. (20 N.m). Then tighten bolt an additional 35 degrees.
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.