在下乡服务中，一位机手向我们说起他的农用三轮车，发动机型号为Ｒ１８５，使用中发现机油变成灰白色，更换上新机油放了几天也没事，但发动着车几分钟，机油又变成灰白色，且从油底壳里放出一碗多水。于是他更换了缸筒、阻水圈、缸垫，后又换了机体，也没能解决问题。经... In the countryside service, one of our fighters talked to us about his agricultural tricycle, the engine model was R185, and the engine oil was found to become greyish-white in use. After a few days of replacing the new engine oil, it was fine to start the car for a few minutes, The oil turned gray again, and a bowl of water was drained from the oil pan. So he replaced the cylinder, water blocking ring, cylinder pad, and then changed the body, did not solve the problem. through...