Quanchai 4115 oil shell has water What s going on, the rubber ring has also been replaced

Check that the lower gasket is not broken and replace it if necessary.

It is not normal for organic oil to appear on the casing of a diesel engine. The oil on the engine casing should be clear and should not be mixed with other substances. If you see organic oil on the shell, there may be several original cavity causes:

1.Engine Oil Leaks: Engine oil leaking from the outside can be due to worn seals, loose bolts, or other reasons. This can lead to a build-up of oil on the outer surface of the engine.

2.Exhaust System Issues: Excessive oil contamination can be caused by faulty or clogged valves or sensors in the exhaust gas recirculation (EGR) system.

3.Coolant leakage: This may be due to a leak in the coolant system that causes the coolant to mix with the oil and cause stains on the housing.

Whatever the cause of the problem, it needs to be addressed immediately. The accumulation of excessive oil or other substances can cause damage to the engine and other mechanical components. It is advisable to take the vehicle to a professional car repair shop for inspection and repair.

Water ingress in the oil pan is a common fault during the operation of the diesel engine, which is generally caused by damage to the cylinder head gasket, cylinder head or cylinder liner.

Cause of failure: 1. The cylinder liner seal water ring inside the diesel engine is damaged.

2. The copper gasket on the periphery of the cylinder liner inside the diesel engine is uneven and uneven at the junction with the body.

3. The water plug under the cylinder head is damaged.

4. There are microcracks inside the cylinder block.

5. There is a crack in the cylinder head at the cooling water cavity of the body.

6. Cracks occur after the cylinder head gasket is burned, so that the cooling water flows into the oil channel or into the cylinder, and finally enters the oil pan.

One or more of these causes can cause water ingress inside the diesel oil pan.

It's a very general question. Check the body plugs, cylinder heads, oil coolers!

The engine oil itself has a certain amount of consumption, and excessive consumption is the problem of burning engine oil. There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc., the above reasons will aggravate the oil consumption and lead to the burning of engine oil, making the vehicle appear:

1. Carbon deposition occurs in the combustion chamber, which makes the gas ring of the piston ring stuck, and the sealing is poor.

2. Oil sludge is generated in the lubrication system, and the oil sludge blocks the oil return hole of the oil ring and weakens the oil scraping performance.

3. Wear occurs between the piston and the cylinder wall.

4. The valve seal is corroded and aging, and the sealing performance fails.

In addition, cars now have crankcase ventilation systems (exhaust valves), which can also exacerbate oil consumption if there is a problem.

Hello, burn engine oil to change four matching valve seals!