Chevrolet Silverado / GMC Sierra. Service manual — part 67

Fig. 204: View Of Crankshaft Balancer Weights
Courtesy of GENERAL MOTORS CORP.

1. Apply a small amount of grease to the crankshaft front cover seal sealing surface if reusing

the seal.

2. Ensure that the crankshaft balancer weight(s) is installed in the proper location, if necessary.

IMPORTANT: The length and location of the weight(s) must be the same as

the original.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 205: Installing Crankshaft Balancer
Courtesy of GENERAL MOTORS CORP.

3. Apply a small amount of adhesive into the crankshaft balancer keyway in order to seal the

NOTE:

The inertial weight section of the crankshaft balancer is
assembled to the hub with a rubber type material. The correct
installation procedures (with the proper tool) must be followed
or movement of the inertial weight section of the hub will
destroy the tuning of the crankshaft balancer.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

crankshaft balancer keyway and crankshaft joint. Refer to Sealers, Adhesives, and
Lubricants for the correct part number.

4. Align the keyway of the crankshaft balancer with the crankshaft balancer key.

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

Fig. 206: Pressing Crankshaft Balancer Onto Crankshaft Using J 23523-F
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

6. Using J 23523-F , press the crankshaft balancer onto the crankshaft. See Special Tools.

1. Install the J 23523-F plate and bolts onto the front of the crankshaft balancer. See

Special Tools.

Tighten: Tighten the bolts to 25 N.m (18 lb ft).

2. Install the J 23523-F forcing screw into the end for the crankshaft. See Special Tools.

3. Install the J 23523-F bearing, the washer, and the nut onto the forcing screw. See

Special Tools.

4. Rotate the J 23523-F nut clockwise until the crankshaft balancer hub is completely

seated against the crankshaft position sensor reluctor ring. See Special Tools.

7. Remove the J 23523-F . See Special Tools.

Fig. 207: View Of Crankshaft Pulley & Bolts

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado