When the diesel engine is running, the oil will not pass after the fuselage heats up, why?

Diesel generator error operation 1: When the diesel engine is running when the oil is insufficient, the oil supply to the surface of each friction pair will be insufficient due to insufficient oil supply, resulting in abnormal wear or burns. To this end, it is necessary to ensure sufficient oil before the start of the diesel generator and during the operation of the diesel engine to prevent the failure of pulling cylinders and burning tiles caused by lack of oil.

Diesel generator error operation two: emergency shutdown with load or sudden load immediately shutdown, diesel engine generator after the cooling water circulation stops, the heat dissipation capacity is sharply reduced, the heating parts lose cooling, easy to cause cylinder head, cylinder liner, cylinder block and other parts overheating, cracks, or excessive expansion of the piston stuck in the cylinder liner. On the other hand, the diesel generator is not cooled down at idle speed when it is shut down, which will cause the friction surface to contain insufficient oil, and when the diesel engine is started again, it will aggravate the wear due to poor lubrication.

Therefore, the diesel generator should be unloaded before the engine is turned off, and gradually reduce the speed and run without load for a few minutes.

Diesel generator error operation three: after the cold start without warming up the load of the diesel generator cold start, due to the high viscosity of the oil, poor fluidity, is the oil pump oil supply is insufficient, the friction surface of the machine due to the lack of oil lubrication is poor, resulting in sharp wear, and even the occurrence of cylinder, tile burning and other failures. Therefore, the diesel engine should be run at idle speed to heat up after cooling start, and then run with load when the oil temperature reaches more than 40; The machine should start with a low gear, and drive a certain mileage in each gear in order until the oil temperature is normal and the fuel supply is sufficient, and then it can be converted to normal driving.

Diesel generator wrong operation 4: If the diesel engine slams the throttle after cold start, the speed of the diesel generator will increase sharply, which will cause some friction surfaces on the machine to wear violently due to dry friction. In addition, the force of the piston, connecting rod and crankshaft changes greatly when the throttle is fired, causing violent impact and easy damage to the parts.

Diesel generator error operation five: in the case of insufficient cooling water or cooling water, oil temperature is too high to run the diesel generator cooling water is insufficient, will reduce its cooling effect, diesel engine due to lack of effective cooling and overheating; If the oil temperature of cooling water and engine oil is too high, it will also cause the diesel engine to overheat. At this time, the cylinder head, cylinder liner, piston assembly and valve of the diesel generator are mainly subjected to large heating loads, and its mechanical properties such as strength and toughness decline sharply, which increases the deformation of parts, reduces the matching gap between parts, accelerates the wear of parts, and in serious cases, it will also produce cracks and parts jamming faults.

Overheating of diesel generators will also worsen the combustion process of diesel engines, making the injectors work abnormally, poor atomization, and increased carbon deposits.

Summary. Dear, hello, I'm glad to answer for you, can the diesel engine be heated when it works? A:

The diesel engine can not be oiled, you can check the oil circuit, diesel filtration, air filter is blocked, whether the oil pipe is inlet air, (damaged), after the air is discharged, the high water temperature of the engine is relieved (under the premise of no lack of water) is mainly caused by the following aspects: First, the system is dirty and the thermal radiator water tank is blocked internally. The second is that the machine is blocked, such as the thermostat is not working well or damaged, and the water pump is working poorly.

The third is that air resistance and engine failure lead to high pressure in the cylinder entering the cooling system. Fourth, poor heat dissipation, such as the speed of the cooling fan is too low. The wind ring is broken, and the surface of the tank is dirty.

Fifth, the car that uses electronic fans has the phenomenon that the cooling fan is turned on late. It is the main reason for the high water temperature of the trolley. To solve the problem of turning on the electronic fan, you can use the (engine anti-high temperature and fuel saving protector) to solve the problem.

For specific reasons, it is recommended to go to a repair shop for an inspection.

Hello dear, I have received your question, please wait patiently for 2 minutes, it takes some time to sort out the information and type, please do not end the consultation!

Dear, hello, I'm glad to answer for you, can the diesel engine be heated when it works? Answer: The diesel engine can not be oiled, you can check the oil circuit, diesel filtration, air filter is blocked, whether the oil pipe is inlet air, (damaged), after the air is discharged, the high water temperature of the engine is relieved (under the premise of no lack of water) is mainly generated in the following aspects:

One is the dirty obstruction of the system and the internal blockage of the thermal radiator water tank. The second is that the machine is blocked, such as the thermostat is not working well or damaged, and the water pump is working poorly. The third is that air resistance and engine failure lead to high pressure in the cylinder entering the cooling system.

Fourth, poor heat dissipation, such as the speed of the cooling fan is too low. The wind ring is broken, and the surface of the tank is dirty. Fifth, the car that uses an electronic fan has the phenomenon of cooling fan driving to imitate the evening.

It is the main reason for the high water temperature of the trolley. Solving the problem of turning on the electronic fan can be solved by using a (engine anti-high temperature and fuel saving protector). It is recommended to go to a repair shop for an inspection due to the cause of grinding inclusions.

If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the driving force for my progress. If you feel that I am satisfied with the answer of Fu Lu, you can click on my avatar for one-on-one consultation. Finally, I wish you good health and a good mood!

Summary. The solution to the problem of working heat and oil supply is as follows: 1. Cause of failure:

Low starting speed. Solution: For the diesel engine started by hand, the speed should be gradually increased, and then the pressure reducing handle should be pulled to the non-decompression position, so that there is normal compression in the cylinder.

If the pressure relief mechanism is not adjusted properly or if the valve is pressed against the piston, it will often feel like it is laborious to rock the car. Its characteristic is that the crankshaft cannot rotate when it turns to a certain part, but it can be returned. At this point, in addition to checking the decompression mechanism, you should also check whether the timing gear engagement relationship is wrong.

For the diesel engine using the electric starter, if the starting speed is extremely slow, most of the starter is weak, which does not mean that the diesel engine itself is faulty. A detailed inspection of the electrical wiring should be carried out to determine whether the battery is sufficiently charged, whether the wires are connected tightly and whether the starter is working normally.

The solution to the problem of working heat and oil supply is as follows: 1. Cause of failure: low starting speed.

Solution: For the diesel engine started by hand, the speed should be gradually increased, and then the pressure reducing handle should be pulled to the non-decompression position, so that there is normal compression in the cylinder. If the pressure relief mechanism is not adjusted properly or if the valve is pressed against the piston, it will often feel like it is laborious to rock the car.

Its characteristic is that the crankshaft cannot rotate when it turns to a certain part, but it can be returned. At this point, in addition to checking the decompression mechanism, you should also check whether the timing gear engagement relationship is wrong. For the diesel engine using the electric starter, if the starting speed is extremely slow, most of the starter is weak, which does not mean that the diesel engine itself is faulty.

The electrical wiring should be inspected in detail to determine whether the battery is sufficient, whether the wire connections are tightened and whether the starter group is working normally.

A diesel engine is an engine that burns diesel fuel to obtain energy release. It was invented in 1892 by the German inventor Rudolf Diesel, and in honor of the inventor Diesel was denoted by his surname Diesel, and diesel engines were also known as Diesel engines

The diesel engine is not able to supply oil when it is hot, hello dear,!The diesel engine can not be oiled, you can check the oil circuit, diesel filtration, air filter is blocked, whether the oil pipe is inlet air, (damaged), after the air is discharged, I hope that the shed can be answered to help you. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress.

Finally, I wish you good health and a happy mood!

The lack of fuel supply is caused by a problem with the fuel supply system, and after this problem, the oil pump should be checked first, and then the oil circuit should be checked after the synovial fluid is picked. The lack of oil supply is mostly caused by damage to the oil pump. If the oil pump is damaged and the oil pump is not supplied, then it is enough to replace the oil pump with a new one.

The engine of the car is fueled by a mixture of air and fuel, and if the fuel supply system is not working, the fuel cannot enter the combustion chamber, which will cause the engine to fail to operate normally.

The core component of the fuel supply system is the oil pump, which provides the pressure to transport the fuel through the lines into the engine.

Some in-cylinder direct injection engines are also equipped with a high-pressure oil pump, which is on the oil rail of the engine.

Because the fuel injection pressure of the direct injection engine in the cylinder is particularly high, it is impossible to provide high enough pressure with an ordinary oil pump alone.

It is recommended that you do not add inferior fuel to the car when you usually use the car, and long-term use of inferior fuel can easily lead to damage to the oil pump.

When you use the car, you must also replace the fuel filter regularly.

Fuel filters filter fuel filters.

If the fuel filter is not replaced for a long time, it is easy to cause damage to the fuel pump and may even damage the fuel injector.

When replacing the fuel filter element, be sure to choose the best buried products of the big brand.