What is the effect of excessive carbon deposition in the engine?

Severe carbon deposition will lead to the valve closing is not strict, so that the cylinder can not work completely because there is no cylinder pressure, and even the valve does not return. At this time, the valve and piston will interfere with each other and eventually damage the engine. ?

The filter screen of oil pump is easily blocked by carbon deposit, resulting in low oil pressure and fault light. As can be seen from the figure below, the filter screen of the oil pump has been covered with carbon deposit. Although these carbon deposits can be easily removed by hand, they need to be dismantled. ?

A good oil pump chain will not extend physically after long-term use, and the sludge attached to the chain is also easy to remove. Although the traditional manual cleaning can't 100% remove the sludge, it doesn't hinder the normal work of the oil pump. ?

After wiping, the baffle gradually turns golden yellow. If you use high-quality engine oil for a long time and replace it regularly, the baffle will always keep this color. ?

Piston ring is a kind of metal elastic ring with large outward expansion and deformation, which is divided into aluminum and steel. It is installed in an annular groove with a corresponding cross section for reciprocating motion and rotary motion. According to the pressure difference of gas or liquid, seals are formed between the outer circular surface of the ring and the cylinder, and between the ring and one side of the ring groove.