我是一家摩托车销售公司的维修人员,主要从事售后服务的修理工作。 在我所承修的各类摩托车中,四冲程车的配气凸轮损坏现象较为普遍。一般损坏在行驶几千公里以内,有的更早。一辆新捷达125车,刚用3个月,发动机噪声明显增大,运转无力,启动性能变差。拆开发动机检查,配气凸轮已接近磨圆,其摇臂已严重磨损。车主因此说:“国产车真差”。 I am a maintenance company of a motorcycle sales company, mainly engaged in after-sales service repair work. Among the various types of motorcycles that I undertake, four-stroke vehicles are more commonly damaged by the distribution cam. General damage within a few thousand kilometers driving, some earlier. A new Jetta 125 car, just 3 months, significantly increased engine noise, poor operation, poor start-up performance. Open the engine check, valve cam is close to rounding, the rocker arm has been severely worn. The owner therefore said: “Made in China really bad.”