Chevrolet Silverado / GMC Sierra. 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