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So much knowledge in lubricants

In the process of car maintenance in our stores, dealing with lubricants is  more, the most work we usually do is to do maintenance, and every time you need to change the oil and filter, everyone thinks it is easy to change the oil Already working. In fact, there is still a lot of knowledge in lubricating oil, today we will first understand its components.

1The composition of the lubrication system:

1)Automotive Oil pan—It is used to store engine oil and can also play a certain role in heat dissipation. Choose the oil pan from nbmachinery will be a nice choice.

2) Oil pump-its main function is to extract the oil from the oil pan and pressurize it to the engine oil pipelines and parts to lubricate and maintain the circulation of lubricating oil. Oil pumps are usually installed in oil pans and driven by timing belts, chains or gears.

3) Oil filter-to filter impurities, sludge, iron filings and water in the oil to ensure a clean and lubricating oil in the oil passage. Generally 5000-10,000 kilometers are replaced with engine oil.

4) Pressure limiting valve-installed next to the base of the oil filter, the main function is to open the bypass valve when the oil filter is blocked, allowing the lubricant to enter the main oil passage directly to prevent the oil pump from being overpressured. When the lubrication pressure of the oil passage is too low, the lubrication effect of the main oil passage is guaranteed to prevent damage to the parts to be lubricated.

5) The main oil channel, an important part of the lubrication system, is directly cast on the cylinder block and the cylinder head to ensure that the various systems of the engine deliver lubricant.

6) Oil pump suction pipe and strainer-it is the  channel through which the oil enters the lubrication system. Generally, it is immersed in the bottom of the oil pan, and the sucked oil is pressurized to the surface of each component by the oil pump.

7) Oil pressure switch-When the engine is idling and the main oil pressure is lower than 180KPa, the contacts in the pressure switch are closed and the instrument warning light or buzzer is turned on to warn.

2 The role of lubricating oil:

1) Lubrication-establish oil film on the surface of parts to reduce friction between metal surfaces.

2) Cooling-It can take away the heat generated by the components and dissipate it to the outside of the engine.

3) Clean—Bring the trace metal shavings and carbide sludge generated by the parts to the oil pan.

4) Sealing-Lubricating oil can be adsorbed on the surface of the metal to provide a certain seal.

5) Anti-rust and anti-corrosion-can form a protective film on the surface of metal to prevent the intrusion of acid and harmful substances.

6) Shock absorption and cushioning—prevent excessive impact from causing injury.

7) Transmission of force——The solenoid valve of modern new car relies on lubricating oil to transmit pressure to control the opening degree of the valve.

3 Lubrication method of lubricating oil:

1) Pressure lubrication—supply oil to the surface of various components, such as crankshaft, camshaft, etc., by the pressure of the oil pump.

2) Splash lubrication-lubricating by oil droplets flying from moving parts, such as pistons and cylinder walls, valve cams, etc.

4 Common faults and maintenance methods of lubrication system:

1) At present, the interval for changing the lubricating oil of vehicles is 3 ~ 6 months, and the mileage is 5000 ~ 10000KM. Why is there a time period? Some may say that my car is not used, and I ca n’t change the oil. Because the oil also has a shelf life, it will oxidize. If there are too many, change the oil according to kilometers. When changing the oil, you must change it with the filter element.

2) The pressure is insufficient, and the oil pressure lamp alarms. Most of the causes of this failure are inadequate maintenance, and oil sludge on the oil filter screen has blocked the oil passage for a long time, resulting in poor oil intake and reduced pressure in the main oil passage. This failure can usually be avoided by performing oil change maintenance according to time or kilometers.

3) Some * cars turn on fault lights, the common is the camshaft position signal failure. This situation is usually caused by insufficient oil pressure or failure caused by impurities inside the oil, because the pressure source of the solenoid valve is the oil.

The purpose and function of lubricating oil is very important, do not ignore its importance because the oil change operation seems simple!

[nbmachinery-blog]

Maintained your car, Learn to check so you don’t lose money

Cars and people are inseparable, because a busy commute all year round, a simple mobility tool has really helped everyone a lot. During maintenance, many car owners do n’t really understand the tediousness in it. The merchants do whatever they say. It feels like they have been filled with “ecstasy soup” because they do n’t know much about them, so what others say is what they say. Are we willing to let others arbitrarily slaughter? Maisheng will tell you today what should be maintained and what should not be maintained, and how to check after maintenance or repair, so as not to suffer!

Drive a car to the 4S shop for maintenance. We will all ask how far my car is driven in a year. How can I maintain it? General car repair unions say that in addition to regular maintenance, such as brake pads, brake fluid, gearbox Oil, antifreeze, etc. have to be changed. That is to say, the car should be changed! Actually, regular maintenance is correct, but the brake pads are generally replaced every 30,000 kilometers or so; the brake oil is replaced every 2 years or about 60,000 kilometers; the transmission oil is changed every 3- 5 years or 6 to 100,000 kilometers, and antifreeze is usually replaced every two years or 4 to 60,000 kilometers.

Maisheng also gives you a list of friends who need the following car maintenance cycles to adopt:

Machine filter / 5000 km or half a year; Air filter / 10,000 km or 1 year;

Gasoline filter element / 30000km; Air conditioning filter element / 20000km or 1 year;

Transmission fluid / 6/60000 km or 3 to 5 years; brake fluid / 60000 km or 2 years.

Spark plug:

Ordinary spark plug / 30000km; Platinum spark plug / 60000km;

Iridium spark plugs / 80000 km.

Antifreeze / 4-60000 kilometers or 2 years; brake pads / 30000 kilometers;

Motor oil:

Ordinary mineral oil: 5000 km or half a year; Semi-synthetic motor oil: 7,500 km or half a year;

Fully synthetic motor oil: 10,000 kilometers.

Now let me tell you how to judge whether the car is maintained or not!

Generally maintenance takes a long time, we will put the car in the auto repair shop. When the maintenance is completed, we will call and notify us to pick up the car. First we go to open the front cover and check it one by one. If it is normal Maintenance, the dust on the front cover will become very little. If you are attentive, you will wipe the front cabin clean. It will not be as oily as I did last time, which will cause me to return. The family wiped the car again.

After looking at the cabin, let's look at the oil again to see if he has changed. It's very simple. Just take out a paper towel and wipe out the dipstick to know if it has changed. The same applies to several others including antifreeze.

If it is summer, it is even more necessary to see if the air conditioner has been cleaned up. The method is also simple. Get on the car and turn on the air conditioner. If there is a strange smell, it is not cleaned up. Including the replacement parts on the repair order he gave you can also let him take out the old ones. We have the power. If he can't get it out, it proves that there is something tricky in it, and we can refuse to sign and pay.

If everyone is going to replace the airbag, we must check it, because the black-hearted merchant asks you for 10,000, but you can turn off the airbag fault light by taking a few cents of resistance insurance, and the inspection position is under the steering wheel. Just take a flat-blade screwdriver.

[nbmachinery-blog]

Anti-freezing tips for individual parts of cars

The maintenance of the vehicle is naturally worthy of attention. Oil, water and tires are the biggest factors that cannot be ignored. Here are some practical tips.

How to prevent winter car parts from auto parts manufacturers

Antifreeze first move

Timely replacement of lubricating oil to ensure smooth operation of the machine. After the climate changes, the viscosity of the lubricating oil will change accordingly, which will generally aggravate the wear of the machine parts, so that important parts such as the engine will be damaged to varying degrees. The lubrication requirements are higher, and the lubricating oil is divided into winter lubricating oil and summer lubricating oil. Experts recommend replacing the winter lubricating oil as soon as possible. Moreover, whether in the north, the lubricant must be replaced. In particular, the oil that has been used for a long time, the color is black, and the adhesion is deteriorated should be replaced to ensure that the engine starts smoothly.

Experts also suggest that high-grade gasoline can be replaced in winter, and if you use the 90th gasoline, you can change it to No. 93 oil. Because the temperature of the car in the winter is lower, the use of high-scale gasoline has a higher ignition point, and the ignition ability can be stronger.

Antifreeze second stroke

Replace the engine antifreeze in the ice and snow. It is easy to catch fire. In winter, you need to check the antifreeze. The amount of antifreeze should be appropriate. Engineers recommend that the engine's antifreeze be replaced, especially if the mixed (especially summer watered) antifreeze must be replaced.

The car has reached the north. If the concentration of antifreeze in the engine cooling water is too low, the engine water will freeze, causing the vehicle to fail to start in the morning. Therefore, it is necessary to increase the concentration of the antifreeze solution, which is generally maintained at 70%. Even in the South, you need to increase the concentration of antifreeze, usually add a bottle, you need to add two bottles, generally not more than 50%. In this way, whether driving to the north of the ice and snow, you don't have to worry about the car not catching fire.

In addition, experts reminded that it is necessary to pay attention to different brands of different types of products do not mix, but also choose different regular brand antifreeze according to the model, if the use of inferior antifreeze, not only will the water temperature rise, but also will corrode the engine. In addition, in the winter season, when the warm air is used, the heating system will be faulty after it has been used for a long time. Therefore, the owner of the vehicle should first try whether there is hot air, whether the fan is running or not, and whether the air duct is unobstructed. Sometimes the antifreeze in the warm water pipe does not flow for a long time, and the condensation clogging the circulation pipe. Although it does not affect the driving, it is very troublesome to repair, and these problems should be dealt with promptly.

Antifreeze third stroke

Always pay attention to check tires and tires will become harder in winter, so the friction coefficient is reduced, so the tire pressure can not be too high, but not too low, the outside temperature is low, the tire pressure is too low, the soft tire can accelerate the aging, and the tires are intensified Ground contact accelerates friction and reduces tire life.

In the winter, you should always clean the inclusions in the tread. Try to avoid using tires that have been replenished more than once, and replace tires with large wear and different brands and different patterns.

How to deal with the window icing: If you want to remove the ice, you can start the engine first, open the warm air in the car, use the special ice and snow shovel of the car glass, slowly remove the ice from the ice gap. The correct way to wash your car is to start the car to turn on the warm air system on the car and then clean the car with warm water.

If you take a hot bath after taking the snow, it will cause damage to the car, because sudden changes in temperature will damage the car paint, making it gradually lose its luster, and the windshield of the car may also be in the hot water pouring. Burst. Car washing can't be washed directly with cold water. Especially after the engine heats up, the front part of the car has a high temperature. Cleaning with cold water will cause rapid cooling, which is very unfavorable for surface paint.

Countermeasure 2: Try to open the air on both sides of the door after the car is used up in a day. When the temperature in the car drops to the same level as the outside of the car, turn on the power and wipe the residual water on the windshield with a wiper. Then close the door and lock the car. You can drive on the road the next morning.

The reason for glass icing is that when people leave the car, there is still hot air in the car. When the temperature inside the car gradually decreases to the same as outside the car, the water in the car begins to freeze.

Protective preparation tips

1. Change the black light bulb as soon as possible, and check the fog light and brake light. It is easy to fog and bloom in winter, and the visibility is low. Whether fog lights and high-position brake lights work normally is also a guarantee for driving safety in winter.

2. If the destination of self-driving tour is mostly icy area, it is best to do a “beauty” for the whole body of the car. Waxing in the early winter is a good way to maintain the paint. In addition, the waxed body is not easy to get water, and in the low temperature area in winter, it will not easily appear condensation.

3. Drive to far north area, but also pay attention to the problem of glass water. Although the glass cleaner will be significantly reduced in winter, it can not be ignored. Some people use water and washing water instead of other seasons. However, in the winter, the substitutes often freeze, so they can't be used in winter. In the winter environment below zero degrees Celsius, the anti-freezing winter glass water should be replaced, or it is simpler. Adding the proper proportion of alcohol in the glass water can reduce the freezing point. The purpose of antifreeze.

[nbmachinery-blog]

Put this in the oil sump and let your engine not overhaul for 10 years.

Nowadays, the car is a very popular means of transportation. Some children from abroad will drive. We have also seen some aunts and grandfathers in the driving school. This also further shows that the automobile era has really arrived. Although the current car is still not perfect, there will always be some traffic accidents, but the emergence of the car is really a manifestation of human progress. The price of a car is not as expensive as it was at the beginning. Many people can afford it. Now there are more and more people buying cars. The development of cars has also driven the development of car repairs. Our cars will also get sick. There will be some big and small problems, but if the maintenance is good, the life of the car is still quite long. Today is talking about the engine of the car.

Everyone knows that the engine is very important. They usually have to carefully maintain their own engines. If the engine fails, it is a big fault. You have to go to the repair shop to repair it. This can't be careless. When we check the engine, we will find some metal deposits. This deposit is very common, that is, the residue of the oil, so don't worry if you see it, just clean it up in time.

But don't ignore this deposit, it may be a safety hazard. The car mechanic teaches you a trick: put it in the oil sump and let your engine not overhaul for 10 years.

Before and after the car repairer said that the sediment in the engine, the car mechanic gave me a trick, that is, put a small thing in the oil sump of the engine, this little thing is very common In fact, it is a magnet.

When we go to the 4S shop to ask questions about this metal deposit, they say that it will not affect the normal running of the car, and the engine will automatically filter the metal particles. However, there are always metal particles that leak through the net. Therefore, put a magnet in the oil pan near the oil drain hole, and take it off every time the oil is changed, so that these metal deposits can be cleaned up, and then replaced with oil. It will be fine according to Maisheng Machinery-Who I visit and ask .

These metal objects are small and said that the impact on the normal driving of the car is not great. If there is more, it will have an impact. If one day you just have to drive far away, these deposits will block the oil circuit. At this time, not only will the car fail, it will delay our time, but there will be great safety hazards. pay attention.