Poor Engine Start or Unstable Low Load Running

  1. Usually poor ignition quality of the fuel causes this. Check CCAI and if borderline raise scavenge air – coolant temperature as much as possible or change to marine Diesel oil to start up.
  2. Also check for correct injection viscosity which if incorrect can cause poor atomization and therefore late or no ignition at all.
  3. Poor / no start up also potentially caused up acidic / basic content in the fuel causing sticking – scuffing of plungers and valves in injection equipment.