Hummer H2. Manual - part 1788

Fig. 340: Oil Pump & Bolt 
Courtesy of GENERAL MOTORS CORP. 

7. Remove the oil pump bolts. 

8. Remove the oil pump.  

TIMING CHAIN AND SPROCKETS REMOVAL 

Tools Required 

z

J 8433-1 Puller Bar. See Special Tools and Equipment .  

z

J 41558 Crankshaft Sprocket Remover. See Special Tools and Equipment .  

z

J 41816-2 Crankshaft End Protector  

IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly, cap ends as 

necessary.

 

2004 Hummer H2 

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

  

Fig. 341: Camshaft Sprocket, Bolt & Timing Chain 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the camshaft sprocket bolts.  

2. Remove the camshaft sprocket and timing chain. 

NOTE:

Do not turn the crankshaft assembly after the timing chain has been 
removed in order to prevent damage to the piston assemblies or the 
valves.

 

2004 Hummer H2 

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

  

Fig. 342: View Of J 8433-1, J 41816-2 & J 41558 
Courtesy of GENERAL MOTORS CORP. 

3. Use the J 8433-1 , the J 41816-2 , and the J 41558 in order to remove the crankshaft sprocket. See 

Special Tools and Equipment . 

 

2004 Hummer H2 

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

  

Fig. 343: Crankshaft Sprocket 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the crankshaft sprocket. 

 

2004 Hummer H2 

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