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Why diesel noise

The familiar roar of diesel fuel ignition porazhdaet and subsequent sharp decline in the high pressure in the combustion chamber. Most clearly the specific diesel rumble is heard after starting the engine warms up during idling.

There is no diesel engine ignition system, but there is a system plugs warming up the combustion chambers of cylinders using a spark launchers. In addition, the duration of cranking the engine and anxious waiting, when the indicator lamp goes out the end plugs warming, are long gone. Already many manufacturers produce bystrozapuskayuschiesya diesel engines to run them in the winter requires no more than a couple of seconds. Some cars even have a "starter handle", which can be directly controlled high pressure fuel pump to change the point of injection, accelerate warming and reduce the emission of smoke at start-up.