Original Ito diesel generator exhaust smoke is not normal solution

When the diesel generator is running with a load, the exhaust smoke is generally light gray. When the load is slightly heavy, it may be dark gray (this is in the short-term operation of the meat, or is allowed). The exhaust smoke is not normal here. The main reason is that the exhaust emits black smoke, blue smoke or white smoke. Exhaust smoke black smoke, said that combustion is not perfect. Exhaust emits blue smoke, which means that the combustion chamber enters the engine oil. White smoke indicates that the diesel oil droplets are not ignited and burned in the combustion chamber. The causes and exclusion methods of diesel generator faults are described as follows:

No.

Fault features

cause

Method of exclusion

1

Exhaust smoke black smoke

(l) Diesel engine load exceeds design requirements

(2) Uneven oil supply from each cylinder fuel injection pump

(3) The valve clearance is incorrect, and the air valve sealing line is in poor contact

(4) The fuel supply is too late and some of the fuel is burning in the diesel exhaust pipe

(5) Insufficient intake air

(I) Adjust the load so that it is within the design range

(2) Adjust the fuel supply of each cylinder to balance it

(3) Check valve clearance, air valve, valve spring, and seal condition, and eliminate defects

(4) Adjust the fuel advance angle

(5) Check if there is any problem with the air filter and the air intake pipe and remove it.

2

Exhaust smoke

Oil spray when the injector is injecting oil, atomizing

Bad, injection pressure is too low

Check the fuel injector coupling. If the seal is bad, replace the nozzle with new one. Check the injection pressure and adjust to the range specified in the manual.

3

Exhaust smoke blue smoke

(1) Piston ring stuck or excessively worn, elastic

Insufficient to allow oil to enter the combustion chamber

(2) Excessive oil in oil sump

(l) Clean piston rings and replace new ones if necessary

(2) Press oil line marking and oil

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