What is the reason for the high oil temperature of marine Yuchai diesel engine

If it's seawater cooling oil, it's your seawater system problem, clogged pipes, pump flow too low, etc.

If it is fresh water cooling engine oil, seawater cooling fresh water, then it is the problem of your seawater cooling fresh water (first look at the control valve, and then clear the fresh water cooler).

If it is fresh water cooling engine oil, air cooled fresh water, then you see if there is a problem with your fresh water circulation pump, fresh water does not circulate, if the temperature of the whole fresh water system cooled by air cooling is high, there are 3 possibilities, 1 is cylinder leakage, piston ring problem, high temperature gas into the oil. 2。There is a problem with the bearing, and the crankshaft is hot.

3。The cylinder liner is cracked, and the jacket water is hot.

At the beginning, the water temperature of the diesel engine is higher than the oil temperature, and after the load is normally loaded, the oil temperature is higher than the water temperature, and the oil is cooled by fresh water.

Why does the exhaust assembly come out of the water?

The high water temperature of Yuchai engine may be caused by the fault code of some components. There is also a possibility that the car engine is not maintained in time and is not maintained regularly, so the water temperature will be high during the operation of the engine.

If the engine is not maintained in time, the water tank lacks too much water, or the water is discharged, and when the water is too full, the air in the engine is not completely discharged after the water is too full, which will cause air resistance. This phenomenon only requires adding water in time to let the engine run for a few more minutes, at which point it is enough to open the water filling cap and fill it up again.

When the water temperature is too high, you only need to adjust the distributor and delay the ignition time appropriately. Sometimes the water temperature is too high due to the failure of the part. When the idle speed of the air conditioner is relatively low, it will also cause the water temperature to be high, and when the idle speed of the air conditioner is increased, you should check whether the equipment is operating normally in time.

It is recommended to find out the reasons from the following aspects:

1. Relatively simple, first confirm whether the lower engine is connected to the radiator pipeline is blocked; Poor circulation can easily lead to high water temperature failure when the engine climbs;

2. Furthermore, disassemble the engine water outlet, remove the thermostat to see if it can work normally (soak the thermostat in boiling water to see if it can be opened normally), if the thermostat fails, it will also lead to high water temperature;

3. Disassemble the oil cooler or water pump to see if there is rust and debris in the engine cavity, there was once a customer in Shanxi who added the cooler is not clean, there are impurities that cause the engine cavity to rust, and the water temperature is high due to debris blockage (this situation is generally more serious, the water temperature is high when the engine works for a period of time, and it has not been able to come down).

4. If the whole vehicle is mainly running in the south with a full load, it is recommended to replace a 65° open thermostat.

The water temperature of the diesel engine engine is high, and the thermostat can only be removed. The reason for the high water temperature may be that the cylinder gasket is flushed, the water tank is dirty, the antifreeze is missing, and the fan does not turn. There is a problem with the water pump.

Question: The cylinder head gasket is not flushed, the water tank and water pump are all new, the water is full, the fan is also turning, the thermostat is also removed, and the water temperature is still high.

If you can't find the problem, you can only add another auxiliary water tank to the vehicle. Because if these things are okay, these are all the things that include heat dissipation, and you haven't found the problem, you can only say that there is a problem with the engine itself.

Question: There is also a secondary water tank with enough oil.

Answer: Adding a secondary water tank is to add a water tank like the original car, and then add a fan. It is not the sub-tank of the backwater. Because by adding a secondary tank like this, he multiplied the amount of heat dissipated by two.

The heat dissipation will be better. Another solution is to add water to the tank, but this is more complicated.

Hello 1The lubricating oil is not lubricated enough, and the frictional resistance is high, resulting in a high oil temperature, and the cooling water temperature will also increase. The solution is to change the appropriate lubricating oil.

2.The water temperature gauge and probe are damaged, resulting in inaccurate water temperature, and the solution is to replace the water thermometer and water temperature probe. 3.

The water temperature change of the engine is related to the change of ambient temperature, and the water temperature will increase accordingly when the ambient temperature increases. 4.Cylinder mattress leakage, high temperature and high pressure gas into the waterway, the water temperature rises, the solution is the same as the cylinder mattress, this may be very small, the cylinder mattress is broken, the general water temperature will reach the boiling temperature, will open the rough wheel pot, and because the air pressure is too large, the cooling water will be flushed out.

Summary. Hello, the normal oil temperature of Yuchai marine diesel engine is generally 90 to 110 degrees, and the temperature is normal between this.

Hello, the normal oil temperature of Yuchai marine diesel engine is generally 90 to 110 degrees, and the temperature is normal between this.

I'll take a picture for you to see.

I can't upload it. The most recent ** feature has been maintained.

The temperature of the water in the marine jade firewood is more or less normal.

Hello, this is the same, generally speaking, the diesel engine oil temperature we are talking about is actually his water temperature, which is generally normal between 90-110.

I now have an oil temperature of 77 and a water temperature of 68, and the meter shows the oil pressure, and the speed is 700 rpm, is it normal? on board.

Hello, this is normal, the temperature and water temperature are normal, and the oil pressure on the ship is generally normal in between.

Your oil pressure is also normal.

Good! This engine oil is changed several times a year, and the special engine oil is still better than ordinary engine oil.

Generally, twice a year is at most, basically change once in the first half of the year, it is best to use special engine oil.

Because boats are not the same as others, special engine oil will be a little better.

1. The thermostat cannot be opened, and the coolant cannot be circulated; 2. The radiator or engine water jacket is blocked, causing the coolant to not work normally. 3. The water pump impeller is corroded, and the pump water pressure is not enough; 4. The radiator of the water tank is folded and deformed or blocked by foreign objects, which affects the heat dissipation effect; 5. Serious leakage and insufficient coolant; 6. The ignition of the engine is too late; 7. The water pump belt is too loose; 8. The electronic fan does not work or the speed is too slow. Under normal circumstances, the radiator of the Yuchai engine is blocked, which may cause high temperature of the engine, and less coolant will also cause high temperature; Then there is the overload of the engine, which will also cause the engine to be high. Therefore, to avoid high engine temperature, we must first operate the vehicle correctly, then pay attention to the water level and cleanliness of the water tank, and then regularly go to the maintenance office to check the vehicle first quickly find a shaded place to stop and cool down, let the engine idle and open the hood to speed up the heat dissipation, when the temperature drops, and then add enough water to the water tank.

When checking the coolant of the water tank, be sure to wait for the temperature of the car to cool down before opening the water tank cover, otherwise you will be injured. When cleaning the outside of the radiator, the high-pressure water gun must adjust the pressure, try to stay away from the Sosun water tank, otherwise the heat sink will be washed down, first of all, try not to add water in the water tank, because the water will produce scale, after heating, some minerals will be decomposed and adhered to the inside of the water tank and the engine waterway, which will make the engine heat dissipation bad, and the serious water tank will be blocked, it is recommended to add antifreeze all. If the water tank is clogged, imagine that you can remove the water tank and ask a professional to open it for cleaning.