Re-Manufactured Diesel Injector 2036181 574425 for Scania DC13 072A Engine

Causes: D The needle valve and needle valve seat are worn out due to long-term work, the needle valve is not closed tightly, and after the fuel supply signal stops, the oil passage is not closed tightly, resulting in fuel still entering the combustion chamber. 2 The long-term low-temperature working condition of the engine produces a large amount of carbon deposits, which destroys the sealing performance of the needle valve seat, so that the shaft needle and the needle valve seat cannot be in close contact.

The second is that the needle is stuck, and the movement is not smooth, resulting in slow fuel injection, the needle is not closed quickly, and the atomized particles are thick, which seriously affects the economy and power of the engine. Hairpin, which hinders the movement of the pin. 2 The engine works for a long time and short term, and the combustion of the combustible mixture is incomplete, resulting in a large amount of carbon deposits on the needle valve seat, which has a sticking effect on the needle and affects the normal movement of the needle