WD615发动机是中国重汽集团引进奥地利斯太尔公司的产品 ,该柴油机在我国主要配套重型汽车、工程机械和发电机组等 ,其优良的性能 ,良好的排放已受到广大用户的欢迎。在多年的使用与维修中 ,我感到这种发动机的气门座脱落与砸瓦现象较为普遍 ,判断时也难区别 ,现就我的体会谈一 The WD615 engine is a product introduced by China National Heavy Duty Truck Group into Steyr Austria. The diesel engine is mainly used in China for heavy vehicles, construction machinery and power generation units. Its excellent performance and good emission have been well received by customers. In many years of use and maintenance, I feel this engine valve seat off and smashing tile phenomenon is more common, when judging is also difficult to distinguish, now I experience a