Hummer H3. Manual — part 218

Fig. 493: Inspecting Insert For Proper Installation - Recessed Thread
Courtesy of GENERAL MOTORS CORP.

When installed to the proper depth, the flange of the insert (1) will be seated against the

CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.

IMPORTANT:

The use of a cutting type fluid GM P/N 1052864 (Canadian P/N
992881), WD 40® or equivalent is recommended when
performing the drilling, counterboring and tapping
procedures.

Do NOT remove the original stop collar from a counterbore
drill.

2006 Hummer H3

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

counterbore (2) of the drilled/tapped hole.

Fig. 494: View Of Stop Collar & Counterbore Drill
Courtesy of GENERAL MOTORS CORP.

1. Install a stop collar (2) on the counterbore drill (1), if required.

2006 Hummer H3

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

Fig. 495: Drilling Out Threads Of Damaged Hole
Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

During the drilling process, it is necessary to repeatedly
remove the drill and clean chips from the hole and the
flutes of the drill.

2006 Hummer H3

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

2. Drill out the threads of the damaged hole.

Fig. 496: Cleaning Out Metal Chips
Courtesy of GENERAL MOTORS CORP.

3. Using compressed air, clean out any chips.

Drill the hole until the stop collar contacts the surface of
the base material.

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

tapping.

2006 Hummer H3

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