Diesel Injector Fuel Injector 095000-6481 Denso Injector for John Deere, Zaz

Needle valve couple wear. Needle valve pairs often wear parts of the sealing cone, needle valve guide part and play the role of atomizing to the cone. The abrasion of the seal cone is caused by the impact of the injector spring and the erosion of the impurities in the diesel engine. After the sealing cone is worn, the sealing performance becomes worse, so that the pressure chamber of the nozzle head can not rise, and the production of poor atomization and dripping oil phenomenon, so that the diesel engine takes black smoke and the nozzle head deposits carbon. In addition, when the nozzle sealing performance deteriorates, high pressure gas will be easy to get into the nozzle, serious can burn the nozzle or cause fuel coking so that the needle valve stuck, there are different degrees of wear and tear parts. Solution to this problem: in the process of maintenance, the needle valve component of the injector should be opened to check the actual situation of the needle valve component. If the needle valve component is "lightly injured", it can be properly ground. If the needle valve is badly burned, it needs to be replaced in time.

Fuel injector body appears more serious corrosion in the common problems of fuel injector, fuel injector serious corrosion is more common. On the one hand, because there is a certain amount of sulfur in the fuel, if the sulfur content is too much, the sulfur dioxide and sulfur trioxide generated after combustion can react chemically with the fuel injector metal under certain conditions, thus causing certain corrosion to the body of the fuel injector; On the other hand, once the fuel injector body serious corrosion problems, it will affect the sealing of the fuel injector. In fact, after serious corrosion of the body, it is found in the disassembly and inspection that the sealing of the injector is greatly affected, and then the sulfide gas channeling through the bushing inside. Solution to this problem: if the body of the fuel injector has been corroded, it is necessary to replace the sealing ring and polish the corroded fuel injector to a certain extent. In addition, if the fuel injector corrosion is serious, it can not be used, it needs to be replaced in time to ensure the effective use of the fuel injector.