1 - replaceable element; 2 - ring (7,0x2,5); 3 - ring (91x4); 4 - filter cover; 5 - sealing gasket; 6 - oil pipeline; 7 - sealing ring (А14х20); 8 - hollow bolt; 9 - bolt (M8x100); 10 - oil temperature sensor; 11 - oil pressure sensor; 12 - bolt (M8x55); 13 - bolt (148x70); 14 - ring (20x3); 15 - suction pipeline; 16 - bolt (M6x16); 17.45 - bolt (М8x55); 18 - oil pump; 19 - bushing; 20 - probe; 21 - ring (9x2.2); 22 - bracket; 23, 25, 27, 28, 34 - bolt; 24 - guide; 26 - ring (19,5x3); 29 - oil pan; 30 - pin (M6x30); 31, 35 - sealing ring; 32-oil level sensor; 33 - nut (M6); 36 - cork (M12x1.5); 37 - sealing gasket; 38 - mounting ring; 39 - nut (М10x1); 40 - asterisk; 41 - inner rotor; 42 - outer rotor; 43 - chain; 44 - control valve; 46 - spring; 47 - ring (17x1,8); 48 - spacer sleeve; 49 - retaining ring (2x1); 50 - branch pipe of the oil separator hose; 51 - oil filter housing
After the oil filter, a pressure reducing valve is installed, which, when the pressure rises above the set value. dumps excess oil into the oil bath (pallet). If the filter is clogged, the bypass valve directs the unfiltered oil directly into the pressure line. The opening pressure of the reducing valve is 4.0 kgf/cm2.
A non-return valve is installed in the oil filter fitting, which prevents oil from flowing out of the engine channels and valve lifters after the engine has stopped. The purified oil flows through the pressure line and its branches to the main bearings of the crankshaft. Through inclined drillings in the body of the crankshaft, oil enters its connecting rod neck and sprays to the piston pins and cylinder mirrors. At the same time, engine oil flows through vertical channels into the cylinder head to the camshaft bearings, cylindrical hydraulic pushers of the valve drive, valve guides, to the chain tensioners and the mechanism for changing the position of the camshafts.