Hummer H2. Manual — part 1870

Fig. 636: View Of Engine Oil Filter
Courtesy of GENERAL MOTORS CORP.

4. Lubricate the oil filter seal with clean engine oil.

5. Install the oil filter.

Tighten: Tighten the oil filter to 30 N.m (22 lb ft).

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 637: Oil Pan Drain Plug & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.

6. Install the oil pan drain plug.

Tighten: Tighten the oil pan drain plug to 25 N.m (18 lb ft).

VALVE LIFTER INSTALLATION

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 638: Valve Lifters & Lifter Guides
Courtesy of GENERAL MOTORS CORP.

1. Lubricate the valve lifters and engine block valve lifter bores with clean engine oil.

2. Insert the valve lifters into the lifter guides.

Align the flat area on the top of the lifter with the flat area in the lifter guide bore. Push the lifter
completely into the guide bore.

IMPORTANT:

z

When using the valve lifters again, install the lifters to their original
locations.

z

If camshaft replacement is required, the valve lifters must also be
replaced.

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 639: Valve Lifters, Guide & Guide Bolts
Courtesy of GENERAL MOTORS CORP.

3. Install the valve lifters and guide assembly to the engine block.

4. Install the valve lifter guide bolt (211).

Tighten: Tighten the valve lifter guide bolt to 12 N.m (106 lb in).

CYLINDER HEAD INSTALLATION - LEFT

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2