What is the reason for the black smoke of the loader, what is the reason for the black smoke of the

The causes of black smoke from the loader and the elimination methods are as follows:

1. If the air filter is blocked, causing insufficient cylinder inflation, the air filter element should be cleaned or replaced;

2. The supercharger is faulty, which causes insufficient air supply pressure and makes the diesel engine incomplete, and the supercharger should be overhauled;

3. If the injector is not atomized or dripping, the injector should be overhauled and inspected, and the injector head (needle valve couple) should be replaced if necessary;

Fourth, the oil supply time is not properly adjusted, there are the following two types:

a.Black smoke came out of the exhaust pipe, and at the same time, there was a crisp knocking sound in the cylinder, and the work was rough. This phenomenon is generally caused by the premature oil supply time. Feeding oil too early can often also cause starting difficulties.

b.Black smoke came out of the exhaust pipe, and at the same time there was a flame inside the muffler, and the sound was muffled. This phenomenon is caused by the late supply of oil. If the oil supply time is too late, it often causes the diesel engine to overheat, the exhaust temperature rises, and even the parts may be burned out.

In addition, the diesel engine with the automatic advance of the oil supply angle emits black smoke at high speed, which may also be caused by the damage of the automatic advance of the oil supply angle, and the automatic advance of the oil supply angle should be disassembled and checked. If the oil supply time is improper, it can be checked and adjusted according to the above methods.

Fifth, the oil supply of each cylinder is uneven.

The exhaust pipe emits black smoke, and the machine vibrates seriously, and there is too much oil for individual cylinders, which can be checked and eliminated by the "cylinder breaking method";

Sixth, the quality of diesel is poor.

The diesel fuel is of poor quality, causing poor atomization, so that it cannot be burned completely, the fuel tank should be cleaned and the diesel fuel replaced.

1. Reasons. 1.The flammable mixture is too thick.

2.There is too much oil in the engine fuel. 3.

Poor piston ring or crankshaft oil seal sealing. 4.There is moisture in the fuel.

5.Bad spark plug 6The air filter is too dirty.

2. Fault diagnosis and elimination.

1.For the inspection and diagnosis of excessive concentration of combustible mixtures, the carburetor and air filter should be checked.

2.The blend does not compare with the blend of the oil, or the wrong grade of oil is used. If the oil mixture contains too much oil or the oil quality is poor, the oil of the flammable mixture cannot be completely burned, resulting in black smoke.

The above phenomenon can also occur in two-stroke engines with separate lubrication and oil pump misalignment and excessive oil supply. At this time, the oil pump should be checked and adjusted according to the regulations to ensure that the lubricating oil is supplied proportionally at different throttle openings.

3.Excessive wear or breakage in a four-stroke engine, as well as too much oil in the crankcase, can cause oil to string into the combustion chamber and cause excessive oil in the mixture. If the crankshaft oil seal of a two-stroke engine is broken, it will also cause the oil from the transmission to string into the crankcase and enter the combustion chamber with the mixture.

4.One of the reasons for the mixing of water in the fuel is that the fuel in the fuel tank itself contains water, so the fuel tank should be cleaned and the fuel should be replaced. Another reason is that the cylinder gasket of the water-cooled engine is broken, and cold water enters the cylinder.

If, in the absence of leakage, the water in the tank is consumed too quickly, and the exhaust smoke from the exhaust pipe is slightly white, this is mostly the reason and the head gasket should be replaced.

Black smoke from gasoline engines is rare, black smoke is mainly not completely burned fuel in the combustion chamber, in the case of high temperature and lack of oxygen, diesel can not be completely and fully combusted, so decomposition and aggregation to form soot, it is a small diameter of the aggregate.

Because this aggregate reacts much slower than gasified fuel, due to the high temperature and anoxic environment of the combustion chamber, it cannot be fully burned again and is discharged through the exhaust pipe, so black smoke is presented.

The direct consequence of this phenomenon is that the fuel consumption of diesel engines is very high, the power is reduced, and at the same time, a large amount of carbon deposits exist in the piston and piston ring valves. In severe cases, the piston rings will be jammed, the valve seal is not tight, and the air leakage will be accelerated, and at the same time, it will also accelerate the wear of parts, thereby reducing the service life of the engine, so this aspect should be paid special attention.

Oil spills. There are usually several reasons for oil leaks:

1. Valve oil leakage, valve oil leakage is generally because the valve is blocked or damaged, and the solution is to replace the valve.

2. The joint is loose, and the solution is to tighten the joint or replace the joint.

3. That is, you have problems with the pump and hydraulic oil pipe.

Diesel oil quality --- filter element (air filter, diesel filter) - fuel injection pump--- fuel injector and other reasons may cause black smoke, it is best to talk about it in detail.

Generally, check the air intake first to see if the filter is very dirty. It's the fuel system!

If the air filter is dirty, just replace it.

There is a high chance that the injector will be broken.

Black smoke from the loader is due to a clogged air filter that causes the cylinder to be under-inflated, the air filter needs to be replaced in a timely manner. Or when the supercharger of the car is faulty and the air pressure is insufficient, the combustion of the car is incomplete or the atomization effect of the injector is poor.

Loader Introduction:It is a special means of transportation, which is widely used in construction machinery such as highways, buildings, railways, etc., mainly used to load soil, lime and other materials. In the construction of high-level highways, loaders can be used in construction projects and timber loading operations.

The loader is characterized by strong operating speed, high efficiency and easy operation.

After 50 years of development of China's loader industry, the product technology has been greatly improved, and the distance from the world's advanced level is getting smaller and smaller, and the loader mainly contains engines, torque converters, gearboxes, front and rear drive axles and other components.

1.If the air filter is clogged, causing the cylinder to be inflated insufficiently, the air filter element should be cleaned or replaced; 2.If the supercharger is faulty, the air supply pressure is insufficient, so that the diesel engine burns incompletely, and the supercharger should be overhauled; 3.

If the injector is not atomized or dripping, the injector should be overhauled and inspected, and the injector head (needle valve couple) should be replaced if necessary; 4.There are two types of improper adjustment of the oil supply time: a

Black smoke from the exhaust pipe, while the cylinder 5The oil supply of each cylinder is uneven. Black smoke comes out of the exhaust pipe, and at the same time the machine vibrates severely, for individual cylinders 6

Diesel is of poor quality. Diesel is of poor quality and causes atomization, I hope mine can help you, I wish you a happy life!!

Questions. The forklift throttle was large during driving, and black smoke suddenly came out, and it was very hot near the diesel engine.

Hello dear!! You can check if the oxygen sensor is faulty. The oxygen sensor is generally installed at the end of the exhaust pipe, and if the oxygen sensor fails, the ECU will not be able to correct the fuel injection of the vehicle in time, so the injector is likely to spray a large amount of fuel when the accelerator is large, resulting in the engine not being able to burn completely.

Secondly, we should also check the injectors, if the injectors' atomization ability is too poor, the vehicle will not only have a decrease in power, but also lead to an increase in exhaust particulate matter.

Hello dear!! What's the deal with the black smoke when the excavator is working?. There are several reasons,1

If there is black smoke when the excavator is just started, and the black smoke gradually disappears after a period of time after starting, it is a normal phenomenon. 2.If you have any doubts, you can check the excavator three filters (oil filter, diesel filter, air filter.

3.In fact, there are no more than three filter elements on the excavator, two diesel filter elements, one coarse filter, one fine filter, one oil filter element, two space filter elements, one internal filter, one external filter, two hydraulic oil filter elements, one oil inlet, one oil return, and some excavators also have pilot filter elements. The excavator has been emitting black smoke during the operation, and it is accompanied by an increase in fuel consumption, the reasons for the failure are:

1.The air filter of the excavator is blocked, the engine air intake is less, the fuel enters the combustion chamber and the combustion is incomplete, and the black smoke is discharged. 2.

The valve clearance of the excavator engine is too small, the air intake is insufficient, and the air intake system fails. 3.The fuel supply of the diesel pump is too large, the atomization of the fuel injector is poor, and the oil nozzle is dripping.

4.The pressure of the excavator cylinder is insufficient, and the combustion is not good. 5.

Oil leaks from the air intake of the engine supercharger, the oil enters the supercharger, and the exhaust gas turns the oil black at high temperatures, and the excavator emits black smoke. 6.If the black smoke is accompanied by the phenomenon of the excavator holding the car, it is caused by the failure of the hydraulic system of the excavator (too much pressure).

7.In engines with intercoolant, the heat sink is blocked by dust during long-term operation and cannot absorb air, resulting in black smoke. 8.

If the black smoke is only a puff of smoke, it is likely that the driver is operating the throttle too much. 9.Too much engine load or pressure, too much carbon in the cylinder, may cause black smoke from the excavator engine.

10.The timing teeth are not right, and the oil supply time is incorrect. When the engine power is insufficient, when the amount of fuel injected into the cylinder is increased, it does not burn sufficiently, so black smoke is emitted.

This problem is a normal phenomenon, for example, when you dig in the soil, you dig up a rock, and the engine will emit a puff of black smoke. Second, the engine maintenance is not enough, due to the excavator plus more diesel impurities, the fuel filter element service cycle becomes shorter, which will also cause the engine to emit black smoke, insufficient power, stuffy car and other situations. The third is that the engine fuel injector is broken, and it cannot be atomized and sprayed into the cylinder, causing black smoke.

I hope my answers help you.

According to personal experience, diesel engines do not emit black smoke continuously when the mini excavator is running or heavily loaded, mainly due to insufficient fuel**, therefore, we need to focus on the fuel system of the excavator.

Check the air intake.

When the diesel engine of the excavator is working, the fuel is output from the fuel tank outlet and through the double oil separator and fuel refining filter, entering the fuel inlet of the diesel pump. When a clean fuel filter is used in a diesel engine, the fuel resistance of the intake engine of the fuel system does not exceed 20 kapa, and when the fuel filter element is used for a period of time, the oil resistance is not more than 34 kapa.

First of all, the above parts were examined in turn, no leaks were found, and the outlet bolt joints of each node were not loose, which eliminated the possibility of air leaks and air resistance in the fuel system. Secondly, the oil resistance of the mini excavator is, so it is preliminarily judged that the diesel engine is powerless due to the high oil resistance. Finally, the tank outlet, water separator, and fuel filter were not clogged, which further determined that there was a problem with the pipe connection or pipe layout.

Check the fuel lines.

It was found that the diesel fuel hose was provided with a hinge joint, and the hinge bolts and hinges of the hinge could have more resistance, and then the hinge fitting and the butt fitting were compared.

Check the oil-water separator.

The oil inlet of the mini excavator is equipped with a double oil-water separator, which can reduce the oil inlet resistance and extend the maintenance cycle of the filter element, but the three-way joint used in parallel of the double oil-water separator will travel a certain oil inlet resistance. Improvement method: Eliminate the three joints and replace the double oil-water separator with an oil-water separator.

When the excavator is working, it should be related to the structure of the engine cooling system, it is best to check whether the fuel injection pressure of the injector is normal, and the atomization is no problem, but also to see the advance angle of the fuel injection, the door gap gas distribution phase meets the regulations, and there is to check whether the air filter is blocked.

Hello, this should be caused by the excavator burning oil. Because there is black smoke, it means that the engine burns oil. It is possible that the excavator has reached the limit of use, and the degree of excavation should be appropriately mitigated.

When the excavator is working, it always returns smoke, which I think is also very normal, because when the engine is working, the machine pressure is also very high, so it may cause insufficient combustion, so it will emit black smoke.

Summary. The reasons for the black smoke of the excavator are: 1. Insufficient fuel combustion caused by blockage of air filter or air intake pipe 2. Insufficient fuel combustion caused by poor fuel quality; 3. Poor atomization of oil injection; 4. The fuel supply of the fuel injection pump is too large; 5. The timing of oil supply or gas distribution is incorrect; 6. The supercharger works abnormally.

The solution to the black smoke emitted by the excavator is: 1. Check and clean the air filter element and air intake pipeline, and replace the air filter element if necessary; 2. Replace qualified fuel; 3. Check the atomization of the injector and adjust or replace it according to its condition; 4. Adjust according to the engine model according to the regulations.

Black smoke is emitted when the excavator raises the arm, and it is common to do other actions, what is the problem?

The reasons for the black smoke of the excavator are: 1. Insufficient fuel combustion caused by blockage of air filter or air intake pipe 2. Insufficient fuel combustion caused by poor fuel quality; 3. Poor atomization of oil injection; 4. The fuel supply of the fuel injection pump is too large; 5. The timing of oil supply or gas distribution is incorrect; 6. The supercharger works abnormally. The solution to the black smoke emitted by the excavator is:

1. Check and clean the air filter element and air intake pipeline, and replace the air filter element if necessary; 2. Replace qualified fuel; 3. Check the atomization of the injector and adjust or replace it according to its condition; 4. Adjust according to the engine model according to the regulations.

Deal with it like this, dear.

If the flow of the hydraulic pump is reduced, it can be not.

This is fine, but it's best to follow the above method to solve it.