A detailed explanation of the causes of carbon deposits in diesel generator sets

Carbon deposits in diesel generators are actually the result of incomplete combustion of diesel and engine oil that has entered the combustion chamber. It is a relatively common phenomenon for carbon deposits to form on the top of the diesel engine piston, the walls of the combustion chamber and around the valves. A large amount of carbon deposits will have a certain impact on the performance of diesel generator sets. The ultimate manifestations are: poor combustion, deteriorated heat transfer and reduced reliability of fuel injector operation.

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There are numerous reasons for carbon deposits in generator sets. Beidou Power summarizes the main reasons for carbon deposits in generator sets as follows:

 

1. Severe oil leakage.

 

2. Severe air leakage.

 

3. The temperature of the cooling water is too low, which affects the normal combustion of the fuel.

 

4. The diesel and engine oil are of incorrect grades and poor quality, resulting in carbon residue after combustion.

 

5. If the diesel engine is overloaded or the temperature is too high, it will ignite prematurely, resulting in incomplete fuel combustion.

 

6. Abnormal operation of the fuel injector, such as poor atomization, dripping, excessively high or low injection pressure, too early or too late injection timing, or excessive injection volume, can all lead to incomplete combustion of some fuel.

 

For more questions about the generator set, please call the Beidou Power team. More than ten years of professional production and sales of power generation equipment experience, more professional engineer team to serve you, choose Beidou power is to choose rest assured, welcome on-site factory inspection.


Post time: Nov-07-2025