The injection nozzle stuck repair method

First put the stuck injection nozzle into diesel or oil heating, then take it out and wrap it with cloth, and then clamp the needle valve with hand pliers and slowly move, and remove the needle valve from the needle valve body. Drop a small amount of cleaning oil into the needle valve body to make the needle valve move repeatedly in the needle valve body until the needle valve can move freely in the needle valve body. If the sealing surface of the needle valve has burn marks, it should be ground with grinding paste. When grinding, pay attention to the amount of grinding paste and grinding time. Install the cleaned needle valve pair on the injector and adjust the injection pressure before re-use.