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List of the table of contents of this article:

• 1, Weichai 336 engine exhaust pipe injection oil? The four accessories have just been replaced? What's the matter? I hope everyone can help...
• 2, FAW Qingdao Xinguo 3 Huwei 336 What engine
< Li style='margin-bottom: 3px;list-style: none'>3, How much is the gap between Weichai 336 engine piston and cylinder wall
• 4、Weichai 336 electric injection engine What is the reason why the machine can only be started with an electronic pump
• 5, How many stuffy heads are there in Weichai 336 cylinder head
• 6 、What's wrong with the total blown cylinder head of Weichai 336 engine

Weichai 336 engine exhaust pipe injection oil? The four accessories have just been replaced? What's the matter? I hope everyone can help...

1. The diesel engine is easy to repair, and there is no big problem. As far as your problem is concerned, there should be a problem with the gap between the piston ring and the cylinder liner. It does not match, as long as youJust make a measurement with the piston ring and the four, and there is a tool in the gap, or the exhaust gas package is broken, and the exhaust gas package is broken.

2. Due to the wear of the cylinder liner, piston, piston ring or the piston ring breakage, holding, pulling the cylinder or breaking the top of the piston, etc., the high-pressure gas in the cylinder enters the crankcase. After the pressure of the crankcase rises, the splashing oil is discharged from the exhaust pipe with the gas, resulting in the phenomenon of oil flow in the exhaust gas pipe.

3. There are many reasons for this exhaust pipe injection engine oil. The first is the early wear of the four supporting equipment. The piston ring and cylinder liner lose their sealing effect, causing the exhaust gas pressure rushing into the cylinder to increase, forcing the oil to eject from the exhaust pipe. The second is that the exhaust gas ventilation valve body is damaged, so that the ventilation valve body cannot seal the oil from the exhaust pipe.

4. The reasons for the exhaust pipe injection engine oil are veryFor many examples: 1. The crankshaft ventilation valve (PVC) is aging, and the oil-gas separation fails. 2. The piston crankshaft cylinder liner and piston ring have a large wear gap, and the oil scraping effect is poor and the sealing effect is lost, resulting in oil splashing. 3. The wear gap of the valve duct is too large, causing the oil to rush down to the combustion chamber to produce oil exhaust gas.

FAW Qingdao Xinguo 3 Huwei 336 what engine

1, New Huwei 270 double steering 160,000, New Huwei 336 dual-drive 280,000, double steering 60,000. Jiefang Huwei adopts a European-style fashion model. The newly configured roof sunshade, roof side decorative cover, front column decorative cover, etc. make the cab more beautiful.

2. Display according to the relevant public information of the query, the 2017 Hummer 336 adopts a European-style fashion model, with a good-looking appearance and low fuel consumption. The engine is a new engine that FAW Technology Center has devotedly researched and continuously improved.

3. Wei" adopts domestic mature assembly parts and is equipped with high feasibility, low fuel consumption and powerful Weichai 336-380 horsepower, Dachai's CA6DF2L-280-320 horsepower and Deutz engine, Shaanxi's 9-speed and 12-speed dual-intermediate heavy-aft heavy gearbox. , wheel side deceleration rear axle and the new cab newly built by Qingdao Automobile Factory.

How much is the gap between the piston and cylinder wall of Weichai 336 engine

.25 to 0.8mm. According to the query machine tool network, the normal gap between the piston and the cylinder wall is 0.25 to 0.8 mm. The piston is a part that makes reciprocating movement in the cylinder block of a car engine.

Generally 0.5-1mm. First of all, the piston is not round, nor is it square from the side. This is because in the high-temperature working environment, the thermal expansion of different parts of the piston should be considered in advance.

The gap of the piston ring refers to the gap between the piston ring and the cylinder wall. Generally speaking, the gap of the piston ring should be controlled within a very small range to ensure its sealing performance. Generally speaking, the gap of the piston ring is between 0.03mm and 0.08mm.

The gap between the cylinder liner and the piston is about 0.3mm. Cylinder liners are divided into two categories: dry cylinder liners and wet cylinder liners. The cylinder liner that does not touch the cooling water on the back is called the dry cylinder liner, and the cylinder liner in contact with the cooling water on the back is the wet cylinder liner.The thickness of the dry cylinder liner is relatively thin, the structure is simple, and the processing is convenient.

What is the standard clearance of the cylinder liner piston? After the piston ring is installed in the cylinder, the opening clearance is generally about 0.2 mm (the opening clearance of different engines is different), and the piston ring is generally marked (except for the oil ring).

The gap between the cylinder liner and the piston is about 0.3 mm, the large tile and the small tile is about 0.1 mm. The gap between the thrust stopper and the crankshaft is about 0.5 mm, and it can be larger.

What is the reason why the electronic pump can only be started when the Weichai 336 electric injection engine can be started

If the pump oil can be started, the proportion of oil, electricity, gas, and oil and gas is not appropriate, check the car, Whether the fuel injection and air intake devices are aging and have poor performance, you can try to replace them.

Cold start is a low motor speed. Check the battery power and the iron wire to ensure that the motor speed is normal. The oil transmission pump valve leaks or the oil supply spring is soft, resulting in insufficient low pressure when the fuel injection pump starts. Check and replace the oil transmission pump. The cold start of the fuel injection pump is insufficient. Adjust the fuel injection pump and increase the amount of oil concentrated in the start.

When the diesel engine is difficult to start, the shaking is severe, the acceleration is weak, and the exhaust pipe discharges ash and white smoke, it may be because there is air in the system. Check whether the ventilation hole of the fuel tank is blocked, and if necessary, it should be dredged.

The sealing of the oil transmission pump seat is not good. After the engine is turned off, the pressure in the oil pump and the common rail cannot be maintained. Part of the diesel is returned to the fuel tank, so the oil needs to be pumped every time it is started. This problem is most obvious when the car is turned off for a long time and then started, but it is easy to start immediately.

The reason why Weichai's filter is not good after changing the firewood is that the air inside is not discharged.The electric fuel pump is a device that continuously sucks fuel out of the fuel tank and provides the fuel system with the specified pressure and flow rate. Based on the function of the electric fuel pump, it can be seen that the performance of the electric fuel pump will directly affect the working performance of the engine.

The reason why the diesel engine only starts after each manual pumping oil is that the diesel oil pump plug is not enough.



How many stuffy heads are there in Weichai 336 cylinder head

. There are 5 water plugs in the fuel tank of Weichai 336 engine. Founded in 1946, Weichai Holdings Group Co., Ltd. is a leading multinational industrial equipment group in China with important influence in the world.

If there is a problem with the engine valve, it will cause the engine idle speed to be unstable and jitter. In serious cases, it will cause the engine to fail to start and the engine valve to break. If the car valve is broken, it will affect the work efficiency of the engine, and the power of the car will be reduced. The function of the engine valve is to inject fuel into the engine and discharge exhaust gas.

Rotation puts the first cylinder piston in the stop position on the explosion. Adjustment 4Cylinder intake valve, release the intake valve locking nut, release the intake valve adjustment bolt, and insert a 0.40mm plug ruler between the valve bridge and the adjustment screw.

What's wrong with the total blown cylinder head of Weichai 336 engine

1. The plane of the cylinder head or cylinder block is uneven, the contact between the two is poor, and there is a concentrated force point. There are foreign objects in the cylinder, such as the fall of the valve seat, the fall of the valve, the carbon falls off, and the inhalation of foreign objects, causing the piston to hit the cylinder head. The cylinder head time is not handled, and the internal stress is strange.

2. Due to lack of oil or damage or blockage of the safety valve, the engine gas is too large, and then the engine will burn and crack the cylinder head and make a clicking sound.

3、Excessive carbon accumulation of the engine: Excessive carbon accumulation of the engine in the combustion chamber will not only increase the compression ratio (generate high pressure), but also produce high-temperature hot spots on the carbon accumulation surface, causing the engine to explode.

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