Cylinder block
The cast iron cylinder block has four cylinders arranged in a row. In the lower part of the block there are five main bearings for installing the crankshaft, and on the third main bearing, the installation of thrust semi-rings is provided to regulate the axial play of the crankshaft.
Crankshaft
The steel crankshaft has 8 balancers. It is mounted on five main bearings with plain bearing shells. The third main bearing is also equipped with thrust half rings that regulate the axial play of the crankshaft. The crankshaft balancer pulley controls its torsional vibration.
Oil pan
The oil sump mounted on the cylinder block has an integrated oil pickup pipe connected to the oil pump.
Two stage turbocharger
A turbocharger is a device that supplies hot, compressed air to the combustion chambers of an engine through a turbine/impeller driven by an exhaust gas jet, thereby increasing engine power. Since hot compressed air reduces the combustion efficiency of the air-fuel mixture, after leaving the turbocharger, it is cooled in the intercooler (intercooler). The intercooler is located at the top of the front of the radiator of the cooling system and uses the air flow passing through the radiator grille while the vehicle is moving to cool the charge air. The two-stage turbocharger design optimizes boost pressure in all engine operating modes. At low engine speeds, air is supplied at low pressure, and at higher engine speeds, the charge air pressure increases.
Cylinder head
In the cylinder head there are two camshafts that open 4 valves for each cylinder by means of roller rockers and pushers. The drive sprocket is mounted at the front of the camshaft. Since the valve lifters are equipped with hydraulic lifters, there is no need to adjust the valve clearance. The cylinder head is made of aluminum alloy, which provides it with high strength and rigidity at low weight. The design of the combustion chamber allows to increase the swirl of the air-fuel mixture during injection, which maximizes combustion efficiency.
Valves
Each cylinder has two inlet and two exhaust valves actuated by means of pushers with hydraulic compensators.
Camshafts
The gas distribution mechanism uses two camshafts - one for the intake and the second for the exhaust valves. The camshafts are made of cast iron. To drive the camshafts, a toothed belt is used, the tension of which is regulated by the tensioner. The second camshaft is driven from the first by means of gears.
Forced crankcase ventilation system
The forced crankcase ventilation system reduces the amount of harmful emissions into the atmosphere.
Crankcase ventilation valve (PCV) delivers crankcase gases to the turbocharger inlet. Depending on the engine operating mode, driving conditions and discharge pressure, the valve regulates the amount of crankcase gases supplied.
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