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List of the catalog of this article:

• 1. Yuchai engine Bosch system fourth cylinder no signal
• 2、What is the Yuchai 4-cylinder engine model
• 4. Why does Yuchai electric injection four-cylinder diesel engine get hot after diesel combustion?

The fourth cylinder of the Yuchai engine Bosch system has no signal

1. The pressure pipe nozzle is blocked. Reasons: 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.

2. Solution: First, check whether there are objects that are not fixed, easy to roll and make sounds in the trunk or rear seat, and exclude some items that are not fixed and make noise.

3. I. Electronic controlSystem failure, such as missing sensor signal or misalignment, control signal error or no signal output, spark plug or ignition coil damage leading to inability to ignite, fuel injector not injecting and line failure, etc.

What is the reason why the Yuchai four-cylinder engine does not infuse

It may be that the engine is weak due to the leakage of the turbocharger, or it is also possible that the intake and exhaust system is blocked. The supercharger is actually an air compressor. It is the only mechanical device that can increase the output power of the engine while the work efficiency remains unchanged.

There may be a problem with the oil pump or the oil road. Open the exhaust pipe of the air compressor and hold the exhaust valve with your hand at idle speed to see if it can be inflated.

Analysis problem: appearThis problem is usually caused by insufficient rigidity of the body, resulting in deformation of the vehicle while driving, friction or shaking of the door and the frame, or friction between the steel plates caused by dewelding in some places.

It is necessary to check whether the spark plugs, high-voltage wires, etc. are damp due to the rain of the car. If so, you can dry the damp machine parts before starting. Or take a more trouble-free method: use the hair dryer you blow your hair to blow the damp parts directly. Check whether the spark plug is damaged. If it is damaged, just replace the new spark plug.

What is the model of Yuchai 4-cylinder engine

The Yuchai 4-cylinder engine model has YC4D, which is 120 horsepower, 130 horsepower and 140 horsepower respectively. 1 kilowatt is about equivalent to 36 horsepower.First of all, it depends on the power of the car. For example, the engine power is 80KW, and the horsepower is 80*36=108, which means that the car has 108 horsepower.

YC - the initials of the enterprise name "Yuchai" D - the main model code of the engine 4 - the number of cylinders is 4, that is, the four-cylinder engine P - cylinder specification series number 32 - power 32 horsepower 14 - the emission standard is the national 5/European 5 standard 0 - the main model change code, 0 represents the first version, and no major design changes have been made.

There are a total of 489 models of Yuchai engine, which are expressed as YC: the Chinese Pinyin abbreviation of Yuchai engine; in the second part, the numbers 4 and 6:4 represent a 4-cylinder engine and 6 represents a 6-cylinder engine.

Why does Yuchai electric injection four-cylinder diesel engine get hot after diesel combustion?

It may be caused by insufficient antifreeze, non-working cooling fan, blockage of water tank radiator, damage to pump or slipping of the transmission belt causing water pump failure, thermosulator failure or damage to engine cylinder pad.It is recommended to go to the 4S store to check the reason. The reason for the high temperature of the diesel engine: 1.

The most common reason for the excessive working temperature of the diesel engine is the lack of coolant. When the diesel engine is working, it will produce a large amount of underutilized heat and gather on the engine parts.

The impact of engine load on water temperature. The diesel engine is not working wel. Overloaded at low speed for a long time causes the diesel engine to overheat and cause the water temperature to be too high.

According to what you said, your machine is obviously underpowered. You can make the following adjustments: 1. Correct the oil supply advance angle, 2. Correct the opening and closing pressure of the fuel injector to ensure good atomization. 3. Replace the piston ring and grind the valve. It is estimated that the following work has been done, and your machine can basically work normally. . For your reference.

that is, the high oil level line, preferably slightly lower than the upper scale line. Pay attention to regularly checking and cleaning the water tank of the diesel engine. Rust and scaling of the diesel engine water tank are the most common problems. Rust and scale will limit the flow of coolant in the cooling system, reduce the heat dissipation effect, lead to overheating of the internal combustion engine, and even cause damage to the diesel engine.

There are several reasons for abnormality: 1 The diesel filter is damaged and the diesel is too dirty. 2 There are too many sinking oil needle beads in the fuel injector. At this time, it is best to change the fuel injector assembly, because it is impossible to buy qualified oil needles in the market. 3 The gasket of the fuel injector leaks, which will cause the fuel injector to overheat and burn the oil nozzle.