Hummer H2. Manual - part 1801

Fig. 388: Bearing Cap Bolts & Studs 
Courtesy of GENERAL MOTORS CORP. 

8. Remove the bearing cap M8 bolts. 

IMPORTANT: Remove the bearing cap side bolts prior to cap removal.

 

2004 Hummer H2 

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

  

Fig. 389: View Of Bearing Caps 
Courtesy of GENERAL MOTORS CORP. 

9. Remove the bearing cap M10 bolts and studs. 

 

2004 Hummer H2 

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

  

Fig. 390: View Of J 6125-1B & J 41818 
Courtesy of GENERAL MOTORS CORP. 

10. Use the J 41818 and the J 6125-1B in order to remove the bearing cap. See Special Tools and 

Equipment . 

 

2004 Hummer H2 

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

  

Fig. 391: Measuring Gaging Plastic On Crankshaft 
Courtesy of GENERAL MOTORS CORP. 

11. Measure the gaging plastic at its widest area using the scale supplied with the plastic gaging kit. 

z

If the gaging plastic shows irregularity in the journal exceeding 0.025 mm (0.001 in), remove the 
crankshaft and measure the journal with a micrometer.  

z

If the bearing clearance is greater than 0.065 mm (0.0025 in), select and install an undersized 
bearing set, and measure the clearance with gaging plastic.  

z

If clearance cannot be brought to specifications, replace the crankshaft or grind the crankshaft for 
use with the next undersized bearing. 

 

2004 Hummer H2 

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