Chevrolet Silverado / GMC Sierra. Service manual — part 194

Fig. 647: View Of Balance Shaft Drive Gear
Courtesy of GENERAL MOTORS CORP.

11. Remove the balance shaft drive gear.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 648: Balance Shaft Driven Gear Timing Mark
Courtesy of GENERAL MOTORS CORP.

12. Rotate the balance shaft so that the timing mark on the balance shaft driven gear is in the 6

o'clock position.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 649: Aligning Balance Shaft Drive Gear & Balance Shaft Driven Gear Timing
Marks
Courtesy of GENERAL MOTORS CORP.

13. Position the balance shaft drive gear onto the engine camshaft.

14. Look to ensure that the balance shaft drive gear and the balance shaft driven gear timing

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

marks are aligned.

TIMING CHAIN AND SPROCKETS INSTALLATION

Tools Required

J 5590 Pinion Bearing Race Installer - Rear. See Special Tools.

Installation

Fig. 650: Locating Crankshaft Balancer Key
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado