Genuine New Diesel Injector 28270450 Fuel Injector Delphi 320-06828 for Jcb 448 Jcb P672 Engine

The broken remains of the dowel pin are sometimes difficult to get out of the injector housing dowel hole. In this case, it is often necessary to install a dowel pin or no dowel pin. Generally speaking, not in emergency situations, the nozzle needle body should not be installed only a dowel pin. Because the nozzle tight cap is tightened when only one dowel pin is installed, the nozzle needle body may rotate around the dowel pin. In this way, the nozzle needle valve and the injector shell tappet hole are easily misaligned. Once misaligned, the force exerted by the nozzle tappet on the tail stem of the needle valve is easy to produce a certain radial component. Light, the needle valve in the needle valve body up and down movement is easy to block phenomenon, debugging may barely maintain normal, but the potential trouble is not to be ignored, serious, the needle valve in the needle valve body up and down motion hair long, debugging may appear dripping phenomenon. For a needle-valve body without annular grooves, there may be a large dislocation between the needle valve body oil hole and the injector shell oil hole when the positioning pin is not installed. Although it will not affect diesel combustion, it will have a small cross-sectional area of the oil hole, which will cause a certain impact on the amount of oil injection. For the nozzle needle valve lift adjustment screw, such as the diesel fuel injector series, before assembling the nozzle couple, should first unscrew the lift adjustment screw, so as not to install the nozzle couple tighten the nozzle cap, the nozzle needle valve lift adjustment screw and other parts deformation. In addition, when the nozzle couple is installed in the nozzle tight cap, The pin on the flange of the nozzle needle valve body and the positioning pin on the tight cap must be aligned, and the nozzle plate and the needle valve body should not be separated at all times.