Hummer H3. Manual — part 428

base material.

Fig. 539: Cleaning Out Metal Chips
Courtesy of GENERAL MOTORS CORP.

5. Using compressed air, clean out any chips.

IMPORTANT: All chips must be removed from the tapped hole prior to

insert installation.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 540: Spraying Cleaner Into Tapped Hole
Courtesy of GENERAL MOTORS CORP.

6. Spray cleaner GM P/N 12377981 (Canadian P/N 10953463) or equivalent into the tapped

hole.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 541: Cleaning Out Metal Chips
Courtesy of GENERAL MOTORS CORP.

7. Using compressed air, clean out any chips.

IMPORTANT: All chips must be removed from the tapped hole prior to

insert installation.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 542: Lubricating Installer Tool Using Driver Oil
Courtesy of GENERAL MOTORS CORP.

8. Lubricate the threads of the driver installation tool (2) with the driver oil (1) J 42385-110.

IMPORTANT: Do not allow oil or other foreign material to contact the

outside diameter (OD) of the insert.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3