Diesel Injector Fuel Injector 095000-6520 095000-6521 Denso Injector for Hino, Toyota Dyna, Toyoace

The injector needle valve coupler is made of GCr9 or GCfls ball bearing steel. After matched grinding, the matching gap between the needle valve and the needle valve body is only 0.001-0.003, nnl, and the working surface roughness is Rao.16-0.32 Pin n, the roundness of the needle valve and the cylindrical surface in the needle valve seat hole and the straightness of the axis are not greater than 0.001mnl. With such a high matching accuracy, if you do not pay attention to the cleaning of even parts, it is very easy to cause the injector to be stuck, dripping oil or running out of cylinders
1. The diesel oil added to the engine oil tank must be precipitated and filtered for more than 48 hours; regularly clean or replace the diesel filter element.
2. Before disassembly, remove the oil on the surface of the injector. The removed needle valve coupler should be cleaned in clean diesel oil (it is best not to wash it in metal cleaning agent, so as to prevent the moisture in the cleaning liquid from causing the needle valve coupler to be damaged. rust stains). If the nozzle hole on the needle valve body is blocked by carbon deposits, it should be soaked in engine oil. 10~20h, after the carbon deposit is softened, use thin bamboo sticks or burning needles to clear it; if the needle valve is stuck in the needle valve body and cannot be removed by hand, it can be soaked in clean hot diesel oil for a period of time, and then pad it with pliers Clamp the cloth and take it out; for the needle valve couples that are severely ablated and stuck (blue on the surface), due to high temperature annealing, the hardness and wear resistance decrease, and should be replaced.