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List of contents of this article:

• 1. Analysis of the reasons for the engine qd32 black smoke?
• 2、Nissan qd32t engine is not easy to start in the morning and smokes a lot
• 3, I What's wrong with the Zhengzhou Nissan pickup qd32 engine refueling speed that can't be raised
• 4、What engine is equipped with a three-ton Zhonglian Heavy Forklift
• 5, How to adjust the qd32 engine valve?

Analysis of the reasons for the engine qd32 black smoke?

1. The oil supply is too large. Excessive oil supply increases the amount of oil entering the cylinder, resulting in incomplete combustion of fuel with more oil and less gas. In addition, excessive workload, poor fuel quality and low working temperature will also cause black smoke from the exhaust.

2. Cause analysis Fuel problems: it may be damage to the fuel pump, blockage of the fuel injector, oil leakage in the oil line system, breakage of the intake pipe of the fuel tank, etc., resulting in high concentration of oil and gas. Air problem: The engine lacks fresh air, such as the air outlet is blocked, the air inlet is too strong, the air filter is too dirty and blocked, etc.

3. The combustible mixture is too thick. There is too much oil in the engine fuel. The piston ring or crankshaft oil seal is poorly sealed. There is moisture in the fuel. Spark plug poor air filter is too dirty, troubleshooting elimination, inspection and diagnosis of too thick combustible mixed gas, should focus on checking the carburetor and air filter.

4. Black smoke from the engine is usually caused by incomplete combustion. Possible reasons include: air filter blockage: air filter blockage will lead to insufficient air flow, causing incomplete combustion and black smoke. Fuel injector failure: Fuel injector failure will lead to uneven fuel injection, incomplete combustion, and black smoke.

5. This is a fault caused by the failure of the fuel injector. The black smoke is caused by the excessive injection of the fuel injector. Remove all the fuel injectors and measure them to see where there is an excess of fuel injection. If it is broken, replace it.

6. The air filter is too dirty, causing the intake to be blocked and the mixed gas is too thick. It is manifested as weak to step on the accelerator, and even the phenomenon of broken fire, excessive air intake noise, muffled engine sound, etc. Solution: Replace the air filter.The air flowmeter is too dirty, poor contact, damage, etc. causes the oil distribution to be inaccurate, resulting in excessive mixing gas.

Nissan qd32t engine doesn't start well in the morning and smokes a lot

Hello. Maybe the cylinder bed was flushed to check whether there is water in the oil [If there is a problem with the car, ask the car master. 4S store professional technician, 10 minutes to solve.

The CCA value of the cold start current decreases, and the starter is weak. After starting, the temperature of the engine cylinder rises, the generator charges the battery, and the start-up turns to normal. It is recommended to replace the low-temperature engine oil and use low-temperature diesel. If possible, keep the engine warm, such as driving into the garage and turning on an electric light on the engine.

Hello, if it isFor old cars, it is recommended that you clean the throttle valve, oil path, gas path, ternary catalysis, combustion chamber carbon accumulation, and see if you need to replace spark plugs and fuel filters [If there is a problem with the car, ask the car master. 4S store professional technician, 10 minutes to solve.

Nissan qd32 diesel engine parameters: displacement is 1395nl, the intake form is turbocharged, the number of cylinders is 4, the number of valves per cylinder is 4, and the maximum horsepower is 150ps. A diesel engine is an engine that burns diesel to obtain energy release. The advantages are large torque and good economic performance.

The cold car in winter can't check the viscosity of the oil? If the viscosity of the oil is appropriate, change the engine. First, a 4GB1 large pump with turbocharged is recommended.

What's wrong with my Zhengzhou Nissan pickup qd32 engine refueling speed not being raised

Generally, the reason for this kind of problem is that the engine power, ignition system and oil road system are faulty, which should be sent to the repair shop for repair in time. There is no response to the accelerator pedal, reflecting the abnormal power of the car. The engine power is realized through the coordinated combination of the air intake system, ignition system and oil system.

Check the oil line, especially the gasoline pump. It is possible that the oil is of poor quality or the fuel tank is too dirty, and the oil line is blocked. It can be solved by cleaning the fuel tank and replacing the gasoline pump core. ( 2) Check the distributor. ( 3) Check the cylinder pressure. The latter two are not as likely as one. ( 4) The average pressure of the engine is also high.

This is because the exhaust system is blocked, and the user can replace the ternary catalyst.Other reasons: oil line blockage: first check whether the filter is blocked, whether the pump pressure of the gasoline pump is sufficient, and whether the fuel injector is blocked. It may be because there is too much carbon accumulation in the throttle: the idling position sensor and the air flow meter are damaged.

Replace the diesel filter when the refueling is not strong. The second is to check whether there is oil leakage. If the oil inlet leaks, it will cause air to enter. Check whether the oil head pressure is sufficient, and if it is enough, check the diesel pump. There is also a strange one, please measure the cylinder pressure. When the pressure is not enough, look for the airway problem. The air path is from the air filter to the intake valve to check the valve gap.

Reference: sensor damage, poor contact or signal interruption; poor engine maintenance; poor quality of fuel and oil; insufficient combustion of mixed gas; spark plug failure, ignition coil failure; fuel pump failure, oil line blockage; air conditioning filter blockage.

What engine is equipped with the three-ton Zhonglian Heavy Forklift

T forklift basically It is a 490 engine with a displacement of 54L/H. Engine Displacement, abbreviated as displacement, is the sum of the working volume of each cylinder of the engine, the product of the displacement of a single cylinder Vh and the number of cylinders I.

-5-ton diesel forklifts use 485 engines (factory brands: Quanchai, Xinchai, Xinjiang, Dachai, etc.), and the imported machine is 4TEN92 (Yangma) C240 (Isuzu).

This statement is wrong. Each type of car has its own design requirements and technical parameters. Now the horsepower of the forklift has been increased. It is enough for a 5-ton forklift with 490 power. In the past, the 3-ton forklift was only equipped with a 485 engine. Blindly adding weight will affect the steering system, especially the steering bridge. It will also affect the traction of the forklift.

The best engines on Linde 3-ton forklifts are: Mitsubishi engine and ISUZU engine. Mitsubishi Engine: Mitsubishi Engine has a wide range of applications in the field of forklifts. With stable performance and high durability, it is a well-known brand in the forklift industry.

The Yuchai engine of the ton Heli forklift is electric injection. According to the relevant national laws and regulations, in order to protect the environment and the ozone layer, non-electric injection diesel engines are not allowed to meet the national five standards for emissions.

It can adapt to continuous and continuous work and withstand the load, and the calibration power is hourly power. The forklift gasoline engine should be equipped with a speed limiter. ( 2) The forklift engine is often subjected to great impact and strong vibration when working, so the body and accessories should have sufficient rigidity and strength, and the installation and fixation should mostly adopt three-point support.

How to adjust the qd32 engine valve?

The method of two adjustment of the valve gap is adopted, that is, all the valve gap adjustments can be completed by turning the crankshaft twice.

For the electrical gap of the intake valve of this engine, 0.30mm, and the gap of the exhaust valve, 0.35mm.

Press the air cylinder of the tester tightly to the position of the valve head, so that the end of the cylinder and the junction surface of the cylinder head (or cylinder block) are well sealed, and then pinch the rubber ball to inflate the air cylinder to make the air pressure of 0.6~0.7MPa.

The cylinder-by-cylinder adjustment method of the valve gap, rotate the crankshaft and find the compression stop point of the cylinder.

Determine the valve adjustment time: When the engine is working, the valve should be adjusted at the timing position. If you are not sure about the timing position, you can refer to the engine manual or consult professional and technical personnel. Remove the valve cover: Find the valve that needs to be adjusted on the valve cover, use a wrench to remove the valve cover and expose the valve.