Chevrolet Silverado / GMC Sierra. Service manual — part 355

Fig. 430: Identifying Connecting Rod Inspection Areas
Courtesy of GENERAL MOTORS CORP.

3. Inspect the connecting rod for the following conditions:

Twisting (1)

Proper fit of the connecting rod and cap mating surfaces (2)

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Nicks or gouges in the bearing bore (3)

Damage to the bearing locating slots (4)

Fig. 431: Identifying Connecting Rod Bearing Bore
Courtesy of GENERAL MOTORS CORP.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

4. Measure the connecting rod bearing bore for an out-of-round condition. Refer to Engine

Mechanical Specifications.

Fig. 432: Measuring Piston Pin Diameter
Courtesy of GENERAL MOTORS CORP.

5. To determine piston pin-to-connecting rod bore clearance, use a micrometer and measure

the piston pin OD.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 433: Measuring Connecting Rod Pin Bore Inside Diameter
Courtesy of GENERAL MOTORS CORP.

6. To determine the piston pin-to-connecting rod bore clearance, use a micrometer and

measure the connecting rod pin bore (1) ID.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2