Hummer H2. Manual — part 1732

Use one M10-1.5 x 120 mm and one M10-1.5 x 45 mm bolt for proper tool operation.

Tighten: Tighten the J 42386-A to 50 N.m (37 lb ft).

Fig. 126: View Of Crankshaft Balancer
Courtesy of GENERAL MOTORS CORP.

4. Remove the crankshaft balancer bolt.

Do not discard the crankshaft balancer bolt. The balancer bolt will be used during the balancer installation
procedure.

2004 Hummer H2

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

Fig. 127: View Of J 41816 & J 41816-2
Courtesy of GENERAL MOTORS CORP.

5. Use the J 41816 and J 41816-2 in order to remove the crankshaft balancer.

6. Remove the J 41816 and the J 41816-2 from the crankshaft balancer.

7. Clean and inspect the crankshaft balancer. Refer to Crankshaft Balancer Cleaning and Inspection .

Installation Procedure

IMPORTANT:

z

Make sure that the teeth of J 42386-A are fully engaged into the flywheel
ring gear teeth.

z

The used crankshaft balancer bolt will be used only during the first pass

2004 Hummer H2

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

Fig. 128: View Of Crankshaft Balancer
Courtesy of GENERAL MOTORS CORP.

of the balancer installation procedure. Install a NEW bolt and tighten as
described in the second, third and forth passes of the balancer bolt
tightening procedure.

z

The crankshaft balancer installation and bolt tightening involves a four
stage tightening process. The first pass ensures that the balancer is
installed completely onto the crankshaft. The second, third, and forth
passes tighten the new bolt to the proper torque.

IMPORTANT: The balancer should be positioned onto the end of the crankshaft as straight as

possible prior to tool installation.

2004 Hummer H2

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

1. Install the crankshaft balancer onto the end of the crankshaft.

Fig. 129: View Of J 41665
Courtesy of GENERAL MOTORS CORP.

2. Use the J 41665 for the following steps. See Special Tools and Equipment .

1. Assemble the threaded rod, nut, washer and installer.

Insert the smaller end of the installer into the front of the balancer.

2. Use a wrench and hold the hex end of the threaded rod.

3. Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto

2004 Hummer H2

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