Fuel delivery timing effects the engine in a number of ways. Advancing the injection timing has the following effects:


  • Cylinder pressures/temperatures
  • Black smoke at peak torque
  • Emissions of oxides of nitrogen (NOx)
  • Black smoke at peak torque


  • White smoke
  • Black smoke at tick over
  • Black smoke at designed rated power
  • Exhaust temperature
  • Brake specific fuel consumption
  • Hydrocarbons (HC)

Setting the injection timing involves balancing power and emission requirements. The engine material tolerances limit the advance due to the increase in peak pressure/temperature.

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Keywords diesel
Authors Darren
License CC-BY-SA-3.0
Language English (en)
Related 0 subpages, 3 pages link here
Impact 250 page views
Created October 3, 2007 by Darren
Modified April 14, 2023 by Felipe Schenone
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