Chevrolet Silverado / GMC Sierra. Service manual — part 2178

Fig. 223: View Of Crankshaft Oil Deflector
Courtesy of GENERAL MOTORS CORP.

4. Install the crankshaft oil deflector (425) and nuts (403).

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. 224: View Of Oil Pump Screen, Bolt, Nuts, & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.

5. Lubricate a NEW oil pump screen O-ring seal (406) with clean engine oil.

6. Install the NEW O-ring seal onto the oil pump screen.

IMPORTANT:

Push the oil pump screen tube completely into the oil
pump prior to tightening the bolt. Do not allow the bolt to
pull the tube into the pump.

Align the oil pump screen mounting brackets with the

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

7. Install the oil pump screen (407).

8. Install the oil pump screen bolt (405) and the nut (404).

Tighten:

1. Tighten the oil pump screen bolt to 12 N.m (106 lb in).

2. Tighten the crankshaft oil deflector nut to 25 N.m (18 lb ft).

CRANKSHAFT REAR OIL SEAL HOUSING INSTALLATION (WITH SEAL IN HOUSING)

Special Tools

J 41479-2A Crankshaft Rear Oil Seal Installation Guide

J 41480 Front and Rear Cover Alignment. See Special Tools .

Installation

correct crankshaft bearing cap bolt/studs.

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. 225: View Of Rear Housing Alignment Tabs
Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Do not use the crankshaft rear oil seal or the engine rear
housing gasket again.

Do not apply any type of sealant to the rear housing
gasket, unless specified.

The special tool in this procedure is used to properly
align the engine rear housing at the oil pan surface.

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