The engine does not add oil in use, there are two reasons of oil increased, a diesel into the crankcase oil level rises; another is the cooling water leaking into the crankcase and oil mixture. The phenomenon of oil and water mixture or oil and oil mixed, if not timely removal will cause serious failure.
The reason
Baotou North heavy duty truck parts pump damage, fuel leakage to the oil pan.
Because the temperature of the combustion chamber is too low, the diesel oil which is not evaporated is flowing along the cylinder wall to the oil sump.
Injector needle valve closed lax or needle stuck in the open position, fuel directly into the cylinder.
Baotou North heavy duty high pressure oil pump internal leakage.
The coolant flow into the crankcase causes the oil level is damaged is communicated with the water jacket and cylinder cylinder, cylinder liner crack between the sealing ring, causing water to leak into the crankcase.
The diagnosis and treatment methods
Take a few drops of oil on the paper to observe the oil color and smell. If the color is milky, and no other odor, it is water into the crankcase. Should be in accordance with the cooling system water leakage failure.
If the engine oil is black and has the smell of diesel oil, the oil viscosity is obviously too low when the oil is twisted by finger. Start the engine to observe whether the operation is good, if the engine starts after the exhaust pipe black smoke, abnormal speed, should check the injector nozzle is closed, there is no leakage and maintenance. If the engine at the normal operating temperature of the power shortage, should check the North Baotou heavy duty truck parts injection pump plunger pairs of diesel oil leakage, and to be replaced. If the engine is operating normally, the oil leakage of the oil pump should be removed and repaired.
For the use of low temperature due to the low level of diesel oil, so that the crankcase oil surface of the fault, it should change the bad driving habits, or by the engine temperature is too low to deal with.
After the inspection is completed, it is necessary to release the old oil, and clean the lubrication system, and then add the new brand of oil.