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