1对润滑系统要多角度审视发动机的润滑系统不仅起润滑机件和减轻磨损的作用,而且会对液压挺柱、CVVT(连续可变气门正时系统)等配气机构产生重大影响。CVVT能否正常工作,除了取决于电控单元外,还与润滑系统的工作状况有关。在发动机维护中,既要定期更换机油和机油滤清器,每2万km左右还需要清洗VVT机油滤清器。如果机油压力过高,将使液压挺柱 A multi-angle view of the lubrication system The engine’s lubrication system not only functions as a lubrication part and reduces wear, but also has a significant impact on the hydraulic tappet, CVVT (Continuously Variable Valve Timing System) and other valve train. CVVT can work properly, in addition to depend on the electronic control unit, but also with the lubrication system working conditions. In the engine maintenance, it is necessary to regularly replace the oil and oil filters, every 20,000 km also need to be cleaned VVT oil filter. If the oil pressure is too high, it will make the hydraulic tappet