ARIA

ENGINE 118 2.1.6 LUBRICATION SYSTEM 2.1.6.1. SYSTEM DESCRIPTION The lubrication system layout is as shown in the schematic above. The oil pump is mounted on the crankshaft pulley side. Oil is drawn up from the sump through oil pump strainer and passes through the pump to the oil cooler and then to the filter. The filtered oil flows through the internal drilled holes into the crankshaft oil gallery from here it is supplied to connecting rod bearings and also to the main bearings by means of intersecting passages drilled in the crankshaft. It is then injected through the cooling nozzle to the under side of the piston to cool it. One more path takes the oil up from the crankshaft oil gallery to camshaft oil gallery in cylinder head and lubricates the camshaft. The camshaft oil gallery also provides the oil needed by the HLA. There is sepa- rate line that goes from the cylinder head to lubricate the turbocharger and the return line is connected to the cylinder block. The relieved oil drains back to oil sump.