General Motors — Balance Shaft Removal (4.3L - If Equipped)
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Before you start
- Front bearing is removed with balance shaft. Replace front bearing and balance shaft as a set only. Replace balance shaft timing gears as a set only.
Procedure
- Remove radiator. Discharge A/C system and remove A/C condenser and grille. Remove valve lifters.
- Remove the timing chain and the camshaft sprocket. Remove balance shaft gears. Remove balance shaft retainer plate.
- Remove intake manifold. Using a soft-faced hammer, tap balance shaft out toward front of engine.
Tools required
- soft-faced hammer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.