Five Causes Of Truck Oil Water Inflow And Four Troubleshooting Methods

Although Water in engine oil is a common fault, if the water ingress of engine oil is not treated in time, it will cause more serious consequences, such as the deformation of important components such as engine crankshaft and connecting rod, resulting in engine jitter, and even more serious, the engine will be scrapped.

So how should we judge the oil inflow and find the reason for the oil inflow? Today, let’s give you a brief explanation:

Five reasons for water in engine oil

Due to the corrosion of scale, the water is blocked and rusted, and the cooling water will enter the oil passage from the water channel to the oil pan. This reason is very common, so check the water blockage frequently.
2. Damaged oil radiator
If the radiator pipeline is damaged, the water outside the radiator will penetrate into the oil radiator, resulting in Water in engine oil.
3. Cracks in cylinder liner
When the cooling water contacts with the working cylinder liner, it is easy to produce cracks. Once cracks occur, the cooling water will directly enter the cylinder and enter the oil pan through the cylinder wall, which will make the oil white, and the white oil will lead to poor combustion and white smoke of the engine.
Generally, the cylinder liner is not easy to crack, but in some cases, for example, the cooling water is not filled with antifreeze in winter, resulting in icing, which may cause the cylinder liner to crack.

4. The sealing ring of cylinder liner is damaged
The damage of cylinder liner sealing ring is a common cause of Water in engine oil, so when troubleshooting the cause of the fault, be sure to check whether the cylinder liner sealing ring is intact.
5. Damaged cylinder gasket
If the cylinder gasket is damaged and the water circulation speed is fast, the water in the water channel will Water in engine oil passage, causing the Water in engine oil to enter the water. Cylinder gasket damage is also one of the common causes of water ingress of engine oil. After each disassembly of the machine, try to use a new cylinder gasket to avoid oil leakage caused by water leakage of cylinder gasket and engine damage.

1. By observing the appearance of Water in engine oil, it is easy to judge whether the oil contains water by color. The oil without water presents a translucent oil bright color, while the oil with water presents an opaque brown or earthy yellow.
2. Check whether the coolant contains oil. If some parts of the engine are damaged, the engine coolant will enter the lubrication system and mix with Water in engine oil. The infiltrated oil will also be found in the coolant of the water tank, which can be easily identified.

3. If Water in engine oil, it will react with the coolant at high temperature to form emulsion. Check the dipstick and you will find that it is white with foam.
4. When the Water in engine oil, the oil level of the oil will rise. At this time, we can simply judge by the level of the oil dipstick.

Conclusion: we can judge whether the engine oil is in water by observing the appearance color of the engine oil, the oil level height of the engine oil and the engine oil coolant.
When water enters the engine, do not start the engine again. Professional maintenance workers are required to clean up the accumulated water inside the engine. Next, check the oil radiator, water plug, cylinder liner sealing ring, cylinder liner, cylinder gasket and other aspects to determine the cause of water entering the engine.