柴油发动机正常燃烧时排出的烟是无色透明或浅灰色、浅蓝色的,如果出现故障,也往往先从烟色中表现出来。 一、冒黑烟 造成发动机冒黑烟的主要因素,一是发动机在运转过程中严重超载;二是空气滤清器堵塞;三是喷油量过多;四是喷油喷雾质量差。因此,发现发动机冒黑烟,首先要看是否超载;其次是查看空气滤清器是否堵塞,如有堵塞要彻底清除排尘孔 The smoke emitted by the normal combustion of a diesel engine is colorless and transparent or light gray, light blue, and often shows off from the smoke if it fails. First, black smoke caused by the engine black smoke the main factors, first, the engine overloaded during operation; second is the air filter clogging; third is the amount of fuel injection; Fourth, the injection of poor quality spray. Therefore, found that the engine black smoke, we must first look at whether the overload; followed by check whether the air filter is blocked, if blocked to completely clean the dust hole