Hummer H3. Manual — part 453

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

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

1. Install the timing chain tensioner.

2. Install the timing chain tensioner bolts.

Tighten: Tighten the timing chain tensioner bolts to 25 N.m (18 lb ft).

Fig. 633: View Of Timing Chain Guide & Bolts
Courtesy of GENERAL MOTORS CORP.

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

3. Install the timing chain tensioner guide.

4. Install the timing chain tensioner guide bolts.

Tighten: Tighten the timing chain tensioner guide bolts to 22 N.m (16 lb ft).

Fig. 634: View Of Timing Chain Tensioner Shoe & Bolt
Courtesy of GENERAL MOTORS CORP.

5. Install the timing chain tensioner shoe.

6. Install the timing chain tensioner shoe bolt.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Tighten: Tighten the timing chain tension shoe bolt to 25 N.m (18 lb ft).

Fig. 635: View Of Cylinder Head Access Hole Plugs
Courtesy of GENERAL MOTORS CORP.

7. Install the cylinder head access hole plugs.

Tighten: Tighten the cylinder head access hole plugs to 5 N.m (44 lb in).

TIMING CHAIN AND SPROCKETS INSTALLATION

Tools Required

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3