The lubrication system receives oil from the oil pan, the oil supply is carried out under pressure. The oil lubricates the surfaces of the moving elements of the engine, dissipates heat, absorbs fuel combustion products and seals the gap between the cylinder and the piston.
The engine is lubricated by a pressure lubrication system using a full-flow oil filter assembly with an oil cooler. The oil filter and cooler form a single unit mounted on the left side of the cylinder block, next to the oil pump. The engine oil is cooled by the engine cooling system, so an additional separate oil cooler is not required.
The oil is drawn from the oil pan, the pressure is created by the oil pump, which is driven by the crankshaft. At the outlet of the oil pump, filtration and cooling occur, then the oil enters the main oil gallery of the cylinder block. Through drilled channels and galleries connected to the main oil gallery, oil under pressure enters the cylinder block and to the bearings of the cylinder head elements, which perform reciprocating motion. Through the hole above the cover of the main bearing No.3, oil under pressure enters the port located in the rear right part of the cylinder block. Through this port, oil under pressure, through a nipple connection of the "banjo" type and a pipeline, is supplied to the bearings of the turbocharger.
Lubrication of all moving parts of the engine is carried out by supplying oil under pressure or by oil splashing. Oil is also supplied under pressure to hydraulic compensators and timing chain tensioners.
The oil returns to the oil pan by gravity. Large drain holes cast into the cylinder head and cylinder block ensure rapid oil return.
(The text of the article was taken from the website: «LRman.ru»)
The lubrication system is replenished through the oil filter cover, which is located on the soundproof engine cover. The oil dipstick is located on the left side of the oil pan. Two marks on the end of the dipstick correspond to the minimum and maximum oil levels. The difference between the maximum and minimum levels indicated by the marks is 1.5 liters of oil.
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