Hummer H3. Manual — part 384

4. Remove the connecting rod cap and bearing half.

Fig. 381: View Of J 41556
Courtesy of GENERAL MOTORS CORP.

5. Install J 41556 on the connecting rod. See Special Tools.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 382: Connecting Rod & Piston Assembly
Courtesy of GENERAL MOTORS CORP.

6. Remove the connecting rod and piston assembly. Push out the assembly.

7. Remove J 41556 . See Special Tools.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

CRANKSHAFT AND BEARING REMOVAL

Tools Required

EN-47702 Bolt Extractor Kit. See Special Tools.

EN-48268 Main Bearing Cap Remover. See Special Tools.

J 6125-1B Slide Hammer with Adapter. See Special Tools.

Removal Procedure

Fig. 383: View Of Crankshaft Main Bearing Cap Bolt
Courtesy of GENERAL MOTORS CORP.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

1. Remove and discard the crankshaft main bearing cap bolts.

IMPORTANT: Rap on the head of each bolt using an appropriate size punch

and hammer. The vibration produced by this procedure
assists in successful removal. If a bolt breaks during engine
disassembly, a broken bolt extractor kitEN-47702 is available
to assist in removal of the remaining bolt segment. See
Special Tools.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3