Hummer H3. Manual — part 247

Fig. 604: Installing J 44221 To Camshafts
Courtesy of GENERAL MOTORS CORP.

4. Install J 44221 with the camshaft flats up and the number 1 cylinder at top dead center. See

Special Tools.

2006 Hummer H3

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

Fig. 605: View Of Camshaft Caps
Courtesy of GENERAL MOTORS CORP.

5. Install the exhaust camshaft caps.

6. Install the intake camshaft caps.

IMPORTANT: Install the same camshaft cap onto the same camshaft

journal from which it was removed. The camshaft caps are
pin stamped for direction and numerical order.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2006 Hummer H3

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

7. Install the camshaft cap bolts. Tighten the bolts evenly in order to compress the valve

springs before final torque.

Tighten: Tighten the camshaft cap bolts to 12 N.m (106 lb in).

8. Remove J 44221 . See Special Tools.

ENGINE LIFT BRACKET INSTALLATION

Fig. 606: Installing Engine Lift Bracket
Courtesy of GENERAL MOTORS CORP.

2006 Hummer H3

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

1. Install the engine lift bracket.

2. Install the engine lift bracket bolts in sequence.

Tighten:

Tighten the engine lift bracket bolts a first pass in sequence to 5 N.m (44 lb in)

Tighten the engine lift bracket bolts a final pass in sequence to 50 N.m (37 lb ft)

TIMING CHAIN TENSIONER INSTALLATION

Fig. 607: View Of Timing Chain Tensioner
Courtesy of GENERAL MOTORS CORP.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2006 Hummer H3

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