Показать сообщение отдельно
  #42  
Старый 25.08.2012, 09:05
VIP
Адрес: techrep@mail.ru
Аватар для techrep
Сообщений: 2,090
Ниже - рекомендуемые действа при чрезмерном белом дыме для этого двигателя.

Excessive White Smoke

Note: Some white smoke may be present during cold start-up conditions when the engine is operating normally. If the white smoke persists, there may be a fault.

Probable Causes

  • Diagnostic codes
  • Low coolant temperature
  • Air inlet heater starting aid (if equipped)
  • Glow plugs (if equipped)
  • Fuel quality
  • Valve lash
  • Low compression (cylinder pressure)
  • Individual malfunctioning cylinder
Recommended Actions


Diagnostic Codes


Check for active diagnostic codes on the electronic service tool. Troubleshoot any active codes before continuing with this procedure.
Low Coolant Temperature


Check that the water temperature regulator is operating correctly. Refer to Systems Operation, Testing and Adjusting, "Water Temperature Regulator - Test".
If the water temperature regulator is operating correctly, refer to "Air Inlet Heater Starting Aid (If Equipped)".
Air Inlet Heater Starting Aid (If Equipped)

  1. Verify that the air inlet heater is operating correctly. Refer to Systems Operation, Testing and Adjusting, "Air Inlet Heater - Test".
  1. If the repair does not eliminate the fault proceed to "Glow Plugs (If Equipped)".
Glow Plugs (If Equipped)

  1. Check for proper operation of the glow plugs. Refer to Systems Operation, Testing and Adjusting, "Glow Plugs - Test".
  1. If the repairs do not eliminate the fault refer to "Fuel Quality".
Fuel Quality

  1. Check the diesel fuel for quality. Refer to Systems Operation, Testing and Adjusting, "Fuel Quality - Test". Note: Diesel fuel with a low cetane value is likely to cause white smoke.
  1. If the repair does not eliminate the fault refer to "Valve Lash".
Valve Lash

  1. Ensure that the valve lash is correct. Refer to Systems Operation, Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust".
  1. If the repair does not eliminate the fault proceed to "Low Compression (cylinder pressure)".
Low Compression (cylinder pressure)

  1. Perform a compression test. Refer to Systems Operation, Testing and Adjusting, "Compression - Test ".
  1. If low compression is noted on any cylinders, investigate the cause and rectify the cause.
    Possible causes of low compression are shown in the following list:
    • Loose glow plugs (if equipped)
    • Faulty piston
    • Faulty piston rings
    • Worn cylinder bores
    • Worn valves
    • Faulty cylinder head gasket
    • Damaged cylinder head
  1. Perform all necessary repairs.
  1. Ensure that the repairs have eliminated the faults.
  1. If the repair does not eliminate the fault refer to "Individual Malfunctioning Cylinder".
Individual Malfunctioning Cylinder

  1. With the engine speed at a fast idle, loosen the high pressure fuel line to the fuel injection nozzle of number 1 cylinder. Note if there is any reduction in engine speed. Tighten the high pressure fuel line to the fuel injection nozzle.
  1. Repeat this procedure for each of the remaining fuel injection nozzles.
  1. Rectify any faults.

Ответить с цитированием