Chevrolet Silverado / GMC Sierra. Service manual — part 273

balancer installation procedure.

Fig. 134: Removing Crankshaft Balancer
Courtesy of GENERAL MOTORS CORP.

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

Tools.

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

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

Inspection.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Installation Procedure

IMPORTANT:

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

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

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.

The balancer should be positioned onto the end of the
crankshaft as straight as possible prior to tool installation.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 135: Crankshaft Balancer And Retaining Bolt
Courtesy of GENERAL MOTORS CORP.

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

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 136: Installing Balancer Using J 41665
Courtesy of GENERAL MOTORS CORP.

2. Use the J 41665 and J 41478 for the following steps. See Special Tools.

1. Assemble the J 41478 threaded rod, nut, washer and J 41665 installer. See Special

Tools.

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.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2