Why do I have black smoke coming from my diesel engine?
If at idle, use the scan tool to cut out one cylinder at a time and see if the smoke disappears. Exhaust leaks or Boost leaks, you can usually hear a boost leak as a high pitched squeal under load. The VGT turbo sticking open or closed will cause black smoke. Buy 6.7 Cummins VGT Turbos
When to shut down a diesel engine with smoke?
No matter the color of the smoke it is not something you should ignore. A properly working and maintained diesel engine should produce no visible smoke. Make sure to shut down the engine immediately if you encounter excessive smoke as further heat or load could severely damage the engine further.
What does Blue Smoke mean when starting an engine?
The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather. The oil thins out when it is cold and some could escape into the cylinder and be burnt.
What causes diesel smoke at Capital Reman exchange?
Diagnosing Causes of Diesel Smoke at Capital Reman Exchange Black smoke is the most common smoke color coming from a diesel engine and most likely indicates something is wrong during the combustion of the diesel fuel. When diagnosing the problem the first place to look at is the mixture of air and fuel flow into the cylinders.
We can generally understand what is wrong with a diesel engine by the color of smoke emitted from the exhaust. There are three basic colors – black, white and blue. This is due to a air to fuel ratio imbalance, either the fuel system is delivering too much fuel into the engine or there is not enough clean air (oxygen).
What does Blue Smoke mean in an engine?
Blue Smoke Blue or grayish smoke means you’re burning oil. Keeping all the quickly moving parts of an engine well oiled is super important, but oil has no place in the combustion chamber, which requires air, fuel and spark only.
Are there any clean diesel engines that don’t smoke?
The newest generation of clean diesel engines hasn’t quite eliminated the smoking, but excessive smoke remains a bane of the malfunctioning oil burner.
Do you know the color of exhaust smoke?
Many underlying engine problems can begin to be solved by making an exhaust smoke color diagnosis. The important thing as a driver is to pay attention to your car’s operation and notice if anything seems off.
What does blow by mean on a new diesel engine?
A brand new diesel engine running at full load will experience a little bit of blow-by upon startup. Blow-by is a condition where diesel fuel, air and vapor are pushed past the rings into the crankcase of the engine. Correct pressure should be maintained in the cylinder chamber in order for proper combustion to occur.
What causes black smoke in the combustion chamber?
Piston Rings are designed to prevent the infiltration of engine oil inside the combustion chamber. If there is any problem with the piston rings, the engine oil starts flowing into the combustion chamber. The combustion of the mixture of this engine oil and the fuel delivers black smoke. 6. Engine Deposits