Hummer H2. Manual - part 1787

Fig. 336: Rear Cover, Bolts & Gasket 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the rear cover bolts.  

2. Remove the rear cover and gasket.  

3. Discard the rear cover gasket. 

 

2004 Hummer H2 

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

  

Fig. 337: Crankshaft Rear Oil Seal 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the crankshaft rear oil seal (141) from the cover.  

OIL PUMP, PUMP SCREEN AND DEFLECTOR REMOVAL 

 

2004 Hummer H2 

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

  

Fig. 338: Oil Pump Screen, Bolt, Nuts & O-Ring Seal 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the oil pump screen bolt (405) and nuts (404).  

2. Remove the oil pump screen (407) with O-ring seal (406).  

3. Remove the O-ring seal from the pump screen.  

4. Discard the O-ring seal. 

 

2004 Hummer H2 

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

  

Fig. 339: Crankshaft Oil Deflector 
Courtesy of GENERAL MOTORS CORP. 

5. Remove the remaining crankshaft oil deflector nuts.  

6. Remove the crankshaft oil deflector. 

 

2004 Hummer H2 

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