Fuel injector nozzle is one of the most important part in the fuel injection system field. Nozzle quality affect its injector function directly. We all know that a good nozzle must have excellent atomization, qualified flow rate and perfect sliding. But a full inspection of a nozzle requires long time and some paticular equipments. Here we would like to share a simple quick visual inspection about it. please check the details below:
Characteristic: Excessively pointed nozzle pin of a bad nozzle. Risk: Tip of nozzle pin may break, engine damage
Characteristic: Rough surface of a bad nozzle. Risk: Uncontrolled combustion due to sealing problems
Characteristic: Wrong nozzle-seat diameter of a bad nozzle. Risk: Incorrect opening pressure, wrong injection timing, weakened engine performance, increased fuel consumption and emissions
Characteristic: Sharp (cone-shaft) junction of a bad nozzle. Risk: Nozzle may break, engine damage