Hummer H3. Manual — part 116

timing chain link adjacent to it.

Fig. 122: View Of J 44221 Installed On Camshafts
Courtesy of GENERAL MOTORS CORP.

5. Install the J 44221 to the rear of the camshafts. See Special Tools.

CAUTION: Refer to Camshaft Holding Tool Caution in Cautions and

Notices.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Fig. 123: Installing 44217 & EN-44217-45 To Timing Chains
Courtesy of GENERAL MOTORS CORP.

6. Complete the following in order to install the J 44217 (1) and the EN-44217-45 (1). See

Special Tools.

1. Install the hook portion of the timing chain retention tools into one of the timing chain

links near the timing chain shoe on both sides of the engine.

2. Tighten the wingnuts.

3. Ensure the hooks are still in one of the links and the gage blocks of the tool are firmly

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

in place on the edge of the head.

Fig. 124: View Of Intake Camshaft Sprocket Washer & Bolt
Courtesy of GENERAL MOTORS CORP.

7. Remove and discard the intake camshaft sprocket bolt.

8. Remove the intake camshaft sprocket.

9. Clean and inspect the sprocket. Refer to Timing Chain and Sprockets Cleaning and

Inspection.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Installation Procedure

Fig. 125: View Of Timing Chain Marked Links
Courtesy of GENERAL MOTORS CORP.

1. Install the intake camshaft sprocket into the timing chain.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3