Hummer H3. Manual — part 551

Fig. 223: Identifying Camshaft & Crankshaft Sprocket Timing Marks
Courtesy of GENERAL MOTORS CORP.

9. Inspect the sprockets for proper alignment. The mark on the camshaft sprocket (1) should be

located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be
located in the 12 o'clock position.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 224: Locating Tensioner Pin
Courtesy of GENERAL MOTORS CORP.

10. Remove the EN 46330 . See Special Tools.

IMPORTANT: Do not apply threadlock to the flex plate bolts at this time.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

11. Temporarily install the automatic transmission flex plate and bolts. Refer to Automatic

Transmission Flex Plate Cleaning and Inspection.

Fig. 225: Identifying J 42386-A Flywheel Holding Tool
Courtesy of GENERAL MOTORS CORP.

12. Install the J 42386-A and bolts. See Special Tools. Use 1 M10-1.5 x 120 mm bolt and 1

M10-1.5 x 45 mm bolt for proper tool operation.

Tighten: Tighten the J 42386-A bolts to 50 N. See Special Tools.m (37 lb ft).

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 226: Tightening Camshaft Sprocket Bolt
Courtesy of GENERAL MOTORS CORP.

13. Tighten the camshaft sprocket bolt.

Tighten:

1. Tighten the camshaft sprocket bolt a first pass to 75 N.m (55 lb ft).

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3