Hummer H3. Manual — part 190

ENGINE FLYWHEEL CLEANING AND INSPECTION (MANUAL TRANSMISSION)

Fig. 393: Inspecting Engine Flywheel For Damage - Manual Transmission
Courtesy of GENERAL MOTORS CORP.

1. Inspect the engine flywheel for damaged teeth (1).

2. Inspect the engine flywheel for cracks, hot spots, or any surface damage (2).

3. Replace the engine flywheel if damage is present.

2006 Hummer H3

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

PISTON AND CONNECTING ROD DISASSEMBLE

Tools Required

J 43654 Piston Pin Retainer Remover/Installer. See Special Tools.

Fig. 394: View Of Piston Rings & Piston Expander

2006 Hummer H3

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

Courtesy of GENERAL MOTORS CORP.

1. Remove the piston rings using a piston ring expander.

Fig. 395: View Of Piston Pin Retaining Clips
Courtesy of GENERAL MOTORS CORP.

CAUTION: Handle the piston carefully. Worn piston rings are sharp

and may cause bodily injury.

IMPORTANT: Do not reuse the piston rings.

2006 Hummer H3

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

2. Remove the piston pin retainers.

Fig. 396: View Of Piston Pin & Connecting Rod
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Two retainers hold the piston pins in place. Reuse the

retainers if they are not damaged during removal.

2006 Hummer H3

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