Home/GMC/Yukon Denali/GMC Yukon Denali (2000-2000)/Repair manual/Mechanical/Engine Mechanical - 4.8L, 5.3L & 6.0L: Maintenance
Contents Wiring diagrams Section: Mechanical All sections

Engine Mechanical - 4.8L, 5.3L & 6.0L: Maintenance GMC Yukon Denali

Mechanical ~108 words

ENGINE LUBRICATION SYSTEM

Gear-type oil pump delivers full pressure lubrication through full-flow oil filter to main oil gallery. Oil pump is mounted on front of cylinder block and is driven directly by crankshaft. Main oil gallery feeds crankshaft and camshaft bearings through drilled passages in block. Valve lifter oil gallery feeds valve lifters. From lifters, oil is routed through hollow push rods to upper valve train components. Timing chain and sprockets are lubricated by oil drainage from No. 1 camshaft bearing. Pistons and piston pins are lubricated by oil splash. Nonadjustable oil pressure regulator is located in oil pump body.