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Chevrolet Silverado / GMC Sierra. Manual - part 2177
Fig. 220: 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. 221: 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).
OIL PUMP, SCREEN AND CRANKSHAFT OIL DEFLECTOR INSTALLATION (RPO LY6/L
LY6/L76/L92)
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. 222: View Of Oil Pump & Bolts
Courtesy of GENERAL MOTORS CORP.
1. Align the splined surfaces of the crankshaft sprocket and the oil pump drive gear and install
the oil pump (413).
2. Install the oil pump (413) onto the crankshaft sprocket until the pump housing contacts the
face of the engine block.
3. Install the oil pump bolts (411).
Tighten: Tighten the oil pump bolts to 25 N.m (18 lb ft).
IMPORTANT: Inspect the oil pump and engine block oil gallery passages.
These surfaces must be clear and free of debris or
restrictions.
NOTE:
Refer to Fastener Notice .
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
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