-
1. Fault judgment:
It is usually manifested as: the engine is found to work abnormally or the power is insufficient, the engine works unevenly at high, medium and low speeds, and the rhythmic vibrating muffler discharges black smoke and discharges guns. The lack of cylinder in the engine can lead to large fuel consumption, black smoke, weakness, horsepower decline, the vehicle cannot increase speed, serious shaking, and increased driving noise.
And it is very bad for driving safety. Especially on the road section that needs to be sloped, the engine load of the vehicle with a lack of cylinder increases, the body shake is more obvious, and it is very easy to have an instantaneous dead fire.
Second, the lack of cylinder operation of the engine will bring great harm
1.The speed and power of the engine decreased.
2.Increased fuel consumption and emissions of pollution.
3.Aggravate the wear of running parts and shorten the service life of lubricating oil.
Third, the maintenance method: first check the circuit fault, and then check the valve tightness (cylinder compression ratio), if there is no problem with the above inspection, it is more troublesome, belongs to mechanical aging or damage, need to be overhauled.
-
Let's see if the sprinkler burns out, if not, let's dismantle it!
-
1. Circuit failure: spark plugs, cylinder wires, ignition coils, etc. are damaged, and it is easy to lack cylinders. You can use the broken fire to determine which cylinder parts are damaged, and replace the damaged parts.
2. Oil circuit: the fuel injector is blocked, and the fuel injector line is short-circuited or broken. The oil cut-off test is used to detect the fault point and carry out maintenance.
3. Mechanical failure: the internal piston, connecting rod, piston ring, piston pin, etc. of the engine are faulty, which are generally accompanied by obvious abnormal noise, and obvious metal chips can be seen when detecting the oil. Engine overhaul.
-
It's very simple, if the problem is not big, you can solve it yourself.
The reason why a cylinder does not work mainly comes from the circuit and oil circuit. First check the circuit, first pull out the cylinder line of each cylinder one by one to check, the inspection method is to take the iron to see the spark, if you find the cylinder line that is not fired, then check back, until the distributor, so that you can find the reason for the lack of fire, what to change what to change. If there is a fire in each cylinder during the process of checking the cylinder line, then check the spark plug to see if there is any breakage, and replace it if there is.
If it is not the cause of the circuit, then you can only go to the repair shop to see the reason for the oil circuit, the ruler is simple, you can't check it, you need special equipment, after all, it is EFI. If it's a computer board, it's expensive. Generally speaking, the reason why a cylinder does not work comes from the circuit, because electricity has a certain amount of wear and tear on related components in every work, and it is easy to fail.
Let me tell you another trick, grinding the electrocution with fine sand paper is good for ignition, and it can play a certain role in power, because the stronger the spark, the better the ignition of the fuel.
That's all ...
Loader performance parameter table.
First, the main size and performance 1Bucket capacity: 3 m32 >>>More
Distinguish the model of the loader: now the loader is used in line with the international standard number, Xiamen has XG910, XG920, XG931, XG942, XG951 >>>More
The reason is that the friction piece is slipping.
First of all, check whether the pressure of the walking pump is normal and whether the temperature of the gearbox is normal. >>>More
1) The sealing ring of the center rotary joint is damaged
The central rotary joint is composed of two major parts, the housing and the mandrel, the mandrel is installed on the lower car body, the housing is installed on the upper car body, and the mandrel has an annular groove equal to the oil pipe. The hydraulic oil from the main valve core flows to the motor through the vertical hole in the mandrel through the housing, and the housing rotates continuously with the upper car body, and the groove on the mandrel can also be kept smooth with the oil port on the housing, and the hydraulic oil can enter and exit freely on the central joint. If the filter element of the hydraulic oil is not replaced in time, the bypass valve on the filter element may be opened, and the impurities in the oil are not filtered so that the impurities in the oil directly enter the sliding surface of the central rotary joint, so that the sealing ring on it is damaged, and the speed of the walking motor on both sides is not the same due to the pressure oil leakage on one side of the excavator when walking, and the excavator is caused to deviate from walking. >>>More
How to check the authenticity of the loader driver's license: >>>More