１柴油机有异响１．１柴油机敲缸。表现为非常明显的局部敲击声，突然降低转速时响声更明显。拆掉缸盖，会发现缸套上方左右两侧有明显发亮的痕迹。一般应更换缸套，视活塞磨损情况决定是否更换活塞。１．２柴油机拉缸。拉缸也会产生异常响声，柴油机运转时可观察到呼吸器冒烟 1 diesel abnormal sound 1.1 diesel knock knock cylinder. The performance is very obvious local percussion, a sudden decrease in speed when the sound is more pronounced. Remove the cylinder head, cylinder liner will find obvious signs of bright left and right sides. Generally should replace the cylinder liner, depending on the piston wear and tear decide whether to replace the piston. 1.2 diesel cylinder. Cylinder will also produce unusual noise, the engine can be observed breathing apparatus smoke