Chevrolet Silverado / GMC Sierra. Manual — part 2146
Tighten: Tighten the oil pump cover bolts to 12 N.m (106 lb in).
5. Install the relief valve (414).
6. Install the relief valve spring (415).
7. Install the relief valve plug (416).
Tighten: Tighten the relief valve plug to 12 N.m (106 lb in).
8. Inspect the oil pump for smooth operation by rotating the drive gear.
ENGINE FRONT COVER CLEANING AND INSPECTION (RPO LY2/LH6/LMG/LY5/LC9)
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. 112: View Of Front Cover, Oil Seal, Camshaft Position Sensor, Bracket & O
Ring
Courtesy of GENERAL MOTORS CORP.
IMPORTANT:
Do not use the crankshaft front oil seal again. Install a
NEW crankshaft front oil seal during assembly.
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
1. Remove the crankshaft front oil seal (140) from the front cover.
2. Clean the cover in solvent. Remove the sealant from the cover oil pan surface. Refer to
Replacing Engine Gaskets .
3. Dry the cover with compressed air.
4. Inspect the gasket sealing surfaces for excessive scratches or gouging.
5. Inspect the threaded bolt holes for damaged threads or debris.
6. Inspect the crankshaft oil seal and camshaft position (CMP) sensor mounting bore for
damage.
ENGINE FRONT COVER CLEANING AND INSPECTION (RPO LY6/L76/L92)
Do not use the front cover-to-engine block gasket again.
Install a NEW gasket during assembly.
CAUTION: Refer to Safety Glasses and Compressed Air Caution .
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. 113: View Of Gasket Sealing Surfaces & Bolt Holes
Courtesy of GENERAL MOTORS CORP.
IMPORTANT:
Do not use the crankshaft front oil seal again. Install a
NEW crankshaft front oil seal during assembly.
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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