Chevrolet Silverado / GMC Sierra. Service manual — part 199

Fig. 664: Applying Adhesive To Engine Sides Front Cover To Engine Block Junction
Courtesy of GENERAL MOTORS CORP.

1. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N

12346141 (Canadian P/N 10953433) or equivalent, to both the right and left sides of the
engine front cover to engine block junction at the oil pan sealing surfaces.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 665: Applying Adhesive To Entire Length Of Rear Oil Seal Housing To Engine
Block Junction At Oil Pan Sealing Surfaces
Courtesy of GENERAL MOTORS CORP.

2. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N

12346141 (Canadian P/N 10953433) or equivalent, to the entire crankshaft rear oil seal
housing to engine block junction at the oil pan sealing surfaces.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 666: View Of Oil Pan Gasket
Courtesy of GENERAL MOTORS CORP.

3. Install the NEW oil pan gasket into the groove in the oil pan.

IMPORTANT: Always install a NEW oil pan gasket.

The oil pan gasket and oil pan must be installed and the
fasteners tightened while the adhesive is still wet to the
touch.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 667: View Of Oil Pan
Courtesy of GENERAL MOTORS CORP.

4. Install the oil pan onto the engine block.

IMPORTANT: The oil pan alignment must always be flush or forward no

more than 0.3 mm (0.011 in) from the rear face of the engine
block.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado