Oubao tractor Quanchai 4108 engine exhaust white smoke, how to repair.

The generation mechanism of diesel engine white smoke is that diesel combustion is poor, and part of the diesel evaporates as fuel vapor or water enters the combustion chamber and is heated and vaporized along with the exhaust gas discharge; In the cold season, it is normal for the diesel engine to emit white smoke when the cold car starts, but when the diesel engine heats up, the exhaust pipe still emits white smoke, which means that the diesel engine is not working properly.

1. When the cylinder head leaks or the cylinder gasket is broken and communicates with the waterway, the cooling water seeps into the cylinder and is discharged to form white smoke when exhausting. If there is too much water in the cylinder, the engine is forbidden to start, otherwise there will be major accidents such as connecting rod bending, body smashing, etc., and the water must be removed after the water ingress before starting;

2. When there is more water in the diesel, the water is discharged after combustion to form white smoke;

3. When the injector injection pressure is too low, the injector is damaged, or the diesel atomization is poor, and the unburned diesel is discharged to form white smoke, the injector should be checked, the injector pressure should be adjusted or the injector should be replaced.

4. When the intake pipe is blocked, the diesel cannot be atomized, and white smoke will also be generated.

It should be that the cylinder head gasket is not tightly sealed, and there is an air leakage.

There are many reasons for the failure of the machine, you just describe it simply, even the great god can't solve your problem, or be practical, find someone to repair it.

The steel barrel piston is old, and the designated engine oil is burned.

If the high temperature is too high, the water barrier may not be tightly sealed.

Tractor engine exhaust leaking diesel smoke blue smoke pro! There are several reasons why diesel vehicles emit blue smoke:1.

The air filter is blocked, the air intake is not smooth or the oil level in the cylinder is too high, which reduces the amount of premature buried air entering the cylinder, changes the normal fuel mixing ratio, and leads to incomplete combustion of more oil and less oil; 2.There is too much oil pan and lubrication, and the lubricating oil is easy to break into the combustion chamber during the operation of the diesel engine; 3.The piston rings are stuck or worn excessively, resulting in insufficient elasticity.

When installed, the piston ring chamfer is in the opposite direction, so that the oil enters the combustion chamber and discharges the blue steam smoke generated by the combustion of the lubricating oil; 4.The cylinder gasket near the oil circuit leading to the engine block head burns out, the piston and cylinder liner are worn, and the piston rings are opposed, which causes the lubricating oil to flow upwards to the combustion chamber and burn with the fuel mixture. Hope it helps!

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.