Hummer H2. Manual — part 1807

Fig. 410: Piston Rings & Piston
Courtesy of GENERAL MOTORS CORP.

2. Using piston ring pliers, remove the piston rings from the piston.

2004 Hummer H2

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

Fig. 411: Piston Pin Retaining Clip Ring Gap & Cutout Area Of Pin Bore
Courtesy of GENERAL MOTORS CORP.

3. Rotate the piston pin retaining clips until the ring end gap is positioned in the cutout area (1) of the pin

bore.

2004 Hummer H2

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

Fig. 412: Piston Pin Retaining Clips
Courtesy of GENERAL MOTORS CORP.

4. Remove the clips starting in the cutout area of the pin bore.

2004 Hummer H2

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

Fig. 413: Identifying Piston & Components
Courtesy of GENERAL MOTORS CORP.

5. Remove the pin from the piston and connecting rod.

6. The piston and pin are a matched set and are not to be serviced separately.

Mark, sort, or organize the piston and the matching piston pin.

PISTON, CONNECTING ROD, AND BEARINGS CLEANING AND INSPECTION

Piston, Pin, and Piston Rings

2004 Hummer H2

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