Engine Oiling System
A trochoid type oil pump is used. The oil pump delivers oil to main gallery, where it is routed to crankshaft journals. Through oil passages in crankshaft, oil is fed to connecting rod journals, connecting rods, and then to piston pins.
A branched oil passage from No. 3 crankshaft journal routes oil to the cylinder head. This oil flows through rocker arm shafts to lubricate rocker arm components. An oil well (located on upper face of cylinder head) provides lubrication to camshaft.
Timing chain and sprockets are lubricated by oil spray from oil jet on chain guide.