Just after changing the 4102 Yuchai four piece set of burning engine oil, there is no obvious exhaus

There are a few places that need to be checked:

1.Use the decoder to check the fault code, and analyze the specific fault cause according to the fault code.

2.If it is an electronic throttle, it is the two accessories of the electronic throttle pedal and the electronic throttle, and there is a problem with the accessories of the Lu judgment beam, and the oil cannot be added.

3.If the throttle is pulled by the cable, check the lower throttle position sensor, this accessory will not be oiled if there is a problem.

4.Remove the three-way catalytic converter, you can also loosen the three-way catalytic converter screw first, and check whether it is a three-way blockage, the three-way catalytic converter is blocked, you can't add the throttle, and you can't run. The three-way catalytic converter is blocked, it is a problem with the oil product, so quickly change the flush like refueling at a gas station.

Summary. Hello friend: According to what you said, the main reason why the diesel engine can't fill up the oil is that the diesel filter element is blocked and faulty. The fuel supply pump or injector is faulty. You can first check whether the oil supply pressure is normal, and if it is normal, it is better to clean the injector.

Hello friend: According to what you said, the main reason why the diesel engine does not add the oil is that the diesel filter element is blocked and failed. The fuel supply pump or injector is faulty. You can check whether the oil supply pressure is normal first, and if it is normal, it is best to clean the silver beam and shake the injector.

If the ignition switch is turned off in place, it can be started again in about 1 minute, but the ignition can not be turned off, and it will not be able to get up again after the ignition is turned off, and it is normal to turn off the ignition switch within 3 seconds.

The exhaust gas emitted black smoke, indicating that the diesel fuel was not burned in the cylinder, which.

The main reasons for du are as follows: zhi

1. The DAO diesel engine runs under overload conditions for a long time.

2. The fuel injection pump is not properly adjusted, and the oil supply of each cylinder is uneven.

3. The advance angle of fuel injection is too small, resulting in too late fuel injection, resulting in an increase in afterburning, and causing part of the fuel to burn in the exhaust pipe.

4. The air filter or intake pipe is blocked, and the compressor casing of the turbocharger is too dirty, etc., which increases the intake resistance and leads to insufficient air intake.

5. The spring elasticity of the turbocharger is weakened, the air seal ring is worn or burned out, and the joint surface of the turbine is leaking.

6. The valve clearance is incorrect, and the valve seal is poor, resulting in exhaust valve leakage and black smoke from the exhaust.

Check and adjust each item one by one, and troubleshoot. Common faults are severe blockage of the air filter and low injection advance angle. Replace the air filter element and adjust the injection advance angle to the specified angle. After the injection advance angle is adjusted, the test run is carried out.

First of all, I tell you that the Yuchai machine is not 4102, at least not yet, what you said should be 4108 or 4110, if the bus is 4112, the oil pump right nozzle must be done in a regular place, sometimes the same thing, change a master to get you out of the effect is very different, the speed of the oil pump, the amount of oil, the opening pressure of the grease nozzle have to be standard, the most important thing is that the ignition time must be adjusted. The supercharger is used by large manufacturers, such as Garrett and the like are well-known brands, there are many small factories, the quality is not respectful, the car emits black smoke, indicating that the oil is enough, the air is not enough, so black smoke is produced, focus on checking the air intake, ignition time, the supercharger is fine, you can check the intercooling, and the pipeline between the pressurization and the air filter and the supercharger to the engine.

If there is black smoke, it should be that the air seat is not enough, that is, the oxygen supply is insufficient, and the air filter, air intake pipe, and engine bronchi are not blocked by air leakage. Whether the supercharger is the wrong model. The oil supply time is also checked.

Is there a problem with the intake and exhaust, and the oil change pump is on time. Isn't it right to inject fuel?

If you check that the air cleaner and intake pipe are okay, you can see if the muffler and exhaust pipe are blocked, and if there is an exhaust brake, you should also see if it is opened in place.

Readjust the valve clearance when the air intake is insufficient, and then check the splash timing again; If it doesn't work, measure the cylinder pressure, the cylinder pressure is not normal, the cylinder is leaking, and the engine will be disassembled.

I repaired one the day before yesterday with the same problem as you, for 4 packages,

Advance your fire position by 2 to 3 teeth and raise them one by one to see if it will be good.

Hello, the pressure of kilograms when the engine is idling, the pressure is too low, check whether the oil alarm and instrument are abnormal, and you can use the intuition meter to detect the oil pressure. If it is still low, you should consider whether the engine oil has not been changed for a long time or has used inferior engine oil; If there is no problem with the oil, it is necessary to see whether the oil channels of the engine are blocked (there is a blockage on the valve rocker) and the oil nozzle (there is a nozzle on the gear room) is abnormal.

Whether the first and second cam bearings are abnormally worn, and the gap is too large. I wish you a happy life, please give a thumbs up, thank you.

Hello dear! Yuchai Diesel 4108 National Five Fuel Injector Oil Injection Nozzle is not Hongkuan, what is the problem, the diesel car has oil but does not catch fire: 1. The engine oil circuit is not smooth:

Check whether the engine oil circuit is unblocked, and hear the squeak sound of the fuel injector, which proves that the oil circuit is fine. 2. Cylinder compression: check the cylinder compression, if the flywheel can rotate after letting go of the pressure reducing device, and there is a problem with the cylinder compression, the cylinder piston and piston ring should be replaced.

3. Lubricating oil: The lubricating oil should be replaced in time, and the lubricating oil that is too viscous is not conducive to the smooth start of the engine. 4. Oil pump:

Check if there is air in the oil pump, if there is air in the oil pump, the diesel engine will not ignite.

There is a certain amount of consumption in the engine oil copy, and excessive consumption of bai is the problem of burning engine oil. There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc., the above reasons will aggravate the oil consumption and lead to the burning of engine oil, making the vehicle appear:

1. Carbon deposition occurs in the combustion chamber, which makes the gas ring of the piston ring stuck, and the sealing is poor.

2. Oil sludge is generated in the lubrication system, and the oil sludge blocks the oil return hole of the oil ring and weakens the oil scraping performance.

3. Wear occurs between the piston and the cylinder wall.

4. The valve seal is corroded and aging, and the sealing performance fails.

In addition, cars now have crankcase ventilation systems (exhaust valves), which can also exacerbate oil consumption if there is a problem.