3.2L Engine (Service Information): Lubrication: Operation

Courtesy of CHRYSLER GROUP, LLC

Oil Flow:

• The oil from the oil pan is pumped by a vane type oil pump mounted to the bottom of the cylinder block that is chain driven by the crankshaft sprocket
• The oil from the pump travels to the oil filter element and then to the oil cooler assembly
• After the oil has been filtered and cooled, the oil enters the main oil gallery
• The pressurized oil travels through the main gallery to the four main journals to lubricate the crankshaft main bearings
• The pressurized oil travels through the crankshaft main journals to cross-drilling supplying oil to the connecting rod journals
• From the number one main bearing gallery, oil travels to the right secondary chain tensioner and to the primary chain idler shaft
• The main oil gallery also supplies oil to three sets of piston oil cooling jets
• From the cylinder block, the oil flows through the galleys into the left and right cylinder heads
• Left cylinder head oil is supplied to the left secondary timing chain tensioner, camshaft journals and hydraulic lash adjusters
• Right cylinder head oil is supplied to the right camshaft journals and hydraulic lash adjusters
• The camshaft valve lobes and rocker arms are lubricated through a small hole in the rocker arm; oil flows through the lash adjuster then through the rocker arm and onto the camshaft lobe
• Oil also flows through each of the four forward camshaft bearings into the camshafts and phasers