The engines use a cross-flow design, where the air-fuel mixture enters the engine cylinders on one side of the engine, and the exhaust gases are removed on the other side of the engine. This engine design significantly improves the filling of the cylinders with the air-fuel mixture and the removal of combustion products.
Each section of the cylinder block has a separate head with a camshaft. The camshafts are driven by a toothed belt. Valve clearances are adjusted automatically using hydraulic tappets, so manual adjustment is not required during operation.
An oil pump located in the front cover of the crankshaft and driven by the crankshaft serves to supply oil to the rubbing surfaces in the engine. Under pressure, oil is supplied through channels to the bearings of the crankshaft and camshaft.
The water pump is located at the front of the engine and is driven by a timing belt. Keep in mind that engine cooling system should be filled year-round with a mixture of antifreeze and low-lime water.
The preparation and ignition of the fuel-air mixture in the engine cylinders is carried out by the engine management system, which does not require adjustments during operation. The ignition advance angle and idle speed are regulated by the engine management system. During maintenance, it is necessary to replace the spark plugs and the air filter element.
Warning: The radiator fan may come on after the engine has stopped and the ignition has been switched off, so use caution when working on a hot engine. To prevent the radiator fan from coming on, disconnect the electrical connector from the radiator fan motor.
Material republished from the website audimanual.ru