What are the methods to clean up the carbon deposit in spark plugs?

Carbon deposition is the current enemy of automobiles, especially the carbon deposition of spark plugs. If the spark plug is not cleaned for a long time, it will definitely lead to carbon deposition and affect the normal use of the car. So how to clean the carbon deposit in the spark plug? What is the cause of carbon deposition in spark plugs?

There are many reasons for carbon deposition in spark plugs. Due to the difference of fuel quality or the concentration of mixed gas is not up to standard, gasoline may burn incompletely in the combustion chamber. At this time, gasoline combustion is incomplete or impurities are easy to accumulate on the spark plug, which will form carbon deposits over time.

Secondly, if the ignition coil works abnormally, such as the ignition coil is damaged, or the engine oil rushes into the cylinder to participate in combustion, this will also lead to incomplete combustion of the mixed gas and carbon deposition, so it is very important to clean up the carbon deposition in time, so how to clean up the carbon deposition in the spark plug?

In fact, it is relatively easy to clean up the carbon deposit in the spark plug. If the carbon deposit on the spark plug is not serious, it can still be cleaned manually. Because the main structure of spark plug is ceramic insulator, metal shell, connecting screw and electrode, which is relatively compact and can effectively resist the corrosion and high temperature of chemical reagents, the use of normal cleaning agent will generally not cause too much damage to spark plug.

In practice, we need to prepare the cleaning agent first, then we just need to take out the spark plug to be cleaned and put it into a container, usually using glass, and then pour the prepared cleaning agent into the container with the spark plug, so that the metal part of the spark plug is completely soaked by the cleaning agent, thus completing all the preparation work. At this time, we will find that there are many small bubbles on the liquid surface, which is because the cleaning agent is decomposing carbon deposits.

After about an hour, more than half of the carbon deposits will be washed away. If there is too much carbon deposit, it can be extended in time, but the soaking time generally does not exceed 12 hours. Some carbon deposits may not fall off because of too tight adsorption. We just need to take out the spark plug, clean the surface with a copper brush, and then clean it with water, so that the spark plug can be restored to its original state. The water stains on the spark plug surface can be put into use again after evaporation.