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北京切诺基吉普车使用了几年之后,很多用户都感到发动机工作不正常,行驶6～7公里,发动机就发生严重的窜气现象和断环的声响,机油耗严重,需进行更换缸体活塞组件的修理。另一方面液压挺杆也易发生磨损和发卡工作,为什么会造成这种过早损坏呢?兹就使用和制造方面分析如下: 一、发动机使用的燃油不合要求北京213吉普车出厂要求使用85号汽油(老标准GB489—86)。根据我国石化工业的发展情况和现代汽车对燃油的要求,车用汽油国家制订了新标准(研究法),分为90号、93号和97号三种。新标准90号汽油的各项指标低于旧标准85号汽油(马达法)。而我国目前大多数地区只供应90号汽油,北京切诺基吉普车也只行使用90号汽油,这就给发动机带来一定危害。最明显的感觉是,发动机出现类似气门脚的声响,实际上
Beijing Cherokee jeep used a few years later, many users feel that the engine is not working properly, driving 6 to 7 km, the engine on the occurrence of severe blow-by gas and broken ring sound, serious fuel consumption, the need to replace the cylinder piston assembly repair. On the other hand hydraulic tappet is also prone to wear and hair card, why would cause such premature damage? Here to use and manufacture of the following analysis: First, the engine used to meet the substandard fuel 213 jeep Beijing factory requires the use of 85 petrol (Old standard GB489-86). According to the development of China’s petrochemical industry and the modern automobile fuel requirements, vehicle gasoline countries have developed a new standard (research method), divided into 90, 93 and 97 three. The new standard No. 90 gasoline indicators below the old standard No. 85 gasoline (motor method). In most areas of our country, only No. 90 gasoline is supplied and Beijing Cherokee jeeps only use No. 90 gasoline, which will bring certain harm to the engine. The most obvious feeling is that the engine sounds similar to the foot valve, in fact