Chevrolet Silverado / GMC Sierra. Service manual — part 68

Courtesy of GENERAL MOTORS CORP.

8. Install the crankshaft pulley and bolts. Finger tighten all bolts until snug in order to fully

seat the pulley.

9. Tighten the bolts.

Tighten: Tighten the bolts to 58 N.m (43 lb ft).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 208: Crankshaft Balancer Washer
Courtesy of GENERAL MOTORS CORP.

10. Ensure that the crown of the crankshaft balancer washer (2) is faced away from the engine.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 209: View Of Crankshaft Balancer Washer & Bolt
Courtesy of GENERAL MOTORS CORP.

11. Install the crankshaft balancer washer and bolt.

Tighten: Tighten the bolt to 95 N.m (70 lb ft).

12. Install the cooling fan. Refer to Fan Replacement (Diesel) or Fan Replacement

(Mechanical) .

13. Install the drive belt. Refer to Drive Belt Replacement.

CRANKSHAFT FRONT OIL SEAL REPLACEMENT

Special Tools

J 35468 Cover Aligner and Seal Installer. See Special Tools.

Removal Procedure

1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.

2. Inspect the engine front cover seal bore area for damage.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

3. Use a suitable seal puller, remove the crankshaft front oil seal.

Installation Procedure

Fig. 210: Installing Front Seal
Courtesy of GENERAL MOTORS CORP.

1. Lubricate the exterior of the NEW seal with clean engine oil.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado