Black smoke from exhaust:

（1）柴油機負荷超過規(guī)定

(1) The load of diesel engine exceeds the specification

（2）各缸供油量不均勻

(2) Uneven oil supply of each cylinder

（3）氣門間隙不正確、氣門密封不良，導致氣門漏氣，燃燒惡化

(3) Incorrect valve clearance and poor valve sealing lead to valve leakage and combustion deterioration

（4）噴油提前角太小，噴油太遲使部分燃油在排氣管中燃燒

(4) The fuel injection advance angle is too small and the fuel injection is too late, which makes part of the fuel burn in the exhaust pipe

（5）進氣量不足：空氣濾清器或進氣管阻塞，渦輪增壓器壓氣機殼過臟等

(5) Insufficient intake: air filter or intake pipe is blocked, turbocharger compressor casing is too dirty, etc

（6）渦輪增壓器彈力氣封環(huán)燒壞或磨損，各結合面漏氣等

(6) The elastic gas seal ring of turbocharger is burnt out or worn, and air leakage occurs on each joint surface

降低負荷使之在規(guī)定范圍內

Reduce the load to within the specified range

調整噴油泵

Adjust the fuel injection pump

調整氣門間隙，檢查帶封錐面，并消除缺陷

Adjust the valve clearance, check the sealing cone and eliminate the defects

調整噴油提前角

Adjust injection advance angle

清洗和清除塵埃污物，必要時更換濾芯

Clean and remove dust and dirt, and replace the filter element if necessary

檢查或更換氣封環(huán)，擰緊結合面螺釘

Check or replace the air seal ring and tighten the screws on the joint surface

2排氣冒白煙：

2. White smoke from exhaust:

（1）噴油器噴油霧化不良，有滴油現(xiàn)象，噴油壓力過低

(1) Poor atomization of fuel injector, oil dripping and low injection pressure

（2）柴油發(fā)電機組剛起動時，個別氣缸不燃燒（特別是冬天）

(2) When the diesel generator set is just started, individual cylinders do not burn (especially in winter)

檢查噴油器偶件，進行修磨或更換。重新調整噴油壓力，使其達到規(guī)定范圍

Check the fuel injector coupling for grinding or replacement. Readjust the injection pressure to the specified range

適當提高轉速及負荷，多運轉一些時間

Properly increase the speed and load and run more time

3排氣冒藍煙：

3. Blue smoke from exhaust:

（1）空氣濾清器阻塞，進氣不暢或其機油盤內機油過多（油濾式空濾器）

(1) The air filter is blocked, the air intake is not smooth, or there is too much oil in its oil pan (oil filter air filter)

（2）活塞環(huán)卡住或磨損過多，彈性不足；安裝時活塞環(huán)倒角方向裝反，使機油進入燃燒室

(2) The piston ring is stuck or worn too much, and the elasticity is insufficient; During installation, the chamfering direction of the piston ring is reversed to allow the oil to enter the combustion chamber

（3）長期低負荷（標定功率40%以下）運轉，活塞與缸套之間間隙過大，使機油易串入燃燒室

(3) During long-term low load operation (below 40% of rated power), the clearance between piston and cylinder liner is too large, so that the oil is easy to string into the combustion chamber

（4）油底殼內機油加入過多

(4) Too much oil is added in the oil pan