我们村里有台与水泵配套的柴油机,排气管时而冒蓝、白烟,时而冒黑烟,功率明显下降。经检查,发现油底壳内油面过高。油面过高是由于机油中渗进了水。渗进水后,机油粘度变小,润滑性能降低,使摩擦阻力增大,发动机工作变得沉重吃力,最终造成功率下降,冒黑烟;同时由于油底壳内油面过高,连 Our village has a set of diesel engines and pumps supporting the exhaust pipe sometimes take the blue, white smoke, and sometimes smoke, the power decreased significantly. After inspection, oil level found in the oil surface too high. Oil level is too high due to the oil into the water. Infiltration into the water, the oil viscosity becomes smaller, lower lubrication performance, so that the frictional resistance increases, the engine becomes heavy work hard, eventually resulting in decreased power, black smoke; the same time as the oil in the oil surface is too high, even