After disassembly of the engine often panting, smoke phenomenon, which mostly diesel injector nozzle card due to death. When the nozzle needle stuck in the closed position, there will be a regular in the vicinity of the cylinder head knocking sound, which is due to fuel injection pump when the pressure wave shock caused by the injector.
If the nozzle needle stuck in the open, cut the cylinder oil, different sound and white smoke disappeared; If the needle stuck in the closed state, the cylinder off the oil off the cylinder oil, engine ignition unchanged . If the multi-cylinder machine to loosen when a high pressure brass cylinder of white smoke, crackling sound disappeared, loosen the Department has a large number of bubbles emerge, indicating that the nozzle needle and the needle cylinder body stuck in the open position; hand to touch a cylinder injector, if a cylinder injector cylinder other than the heat, then prove that the cylinder injector stuck.
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