Chevrolet Silverado / GMC Sierra. Service manual — part 2188

Tools Required

J 41478 Crankshaft Front Oil Seal Installer. See Special Tools .

Installation

Fig. 13: View Of Crankshaft Front Oil Seal

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Courtesy of GENERAL MOTORS CORP.

1. Lubricate the outer edge of the oil seal (1) with clean engine oil.

2. Lubricate the front cover oil seal bore with clean engine oil.

Fig. 14: View Of Crankshaft Front Oil Seal Installation
Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Do not lubricate the oil seal sealing surface.

Do not use the crankshaft front oil seal again.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

3. Install the crankshaft front oil seal (1) onto the J 41478 . See Special Tools .

4. Install the J 41478 threaded rod, with nut, washer, guide, and oil seal, into the end of the

crankshaft. See Special Tools .

5. Use the J 41478 in order to install the oil seal into the cover bore. See Special Tools .

1. Use a wrench and hold the hex on the installer bolt.

2. Use a second wrench and rotate the installer nut clockwise until the seal bottoms in the

cover bore.

3. Remove the tool.

4. Inspect the oil seal for proper installation. The oil seal should be installed evenly and

completely into the front cover bore.

CRANKSHAFT FRONT OIL SEAL INSTALLATION (RPO LY6/L76/L92)

Tools Required

J 41478 Crankshaft Front Oil Seal Installer. See Special Tools .

Installation

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 15: View Of Oil Seal
Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Do not lubricate the oil seal sealing surface.

Do not use the crankshaft front oil seal again.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado