Showing posts with label auto. Show all posts
Showing posts with label auto. Show all posts

Wednesday, November 27, 2013

Anti-rolling tires to experience the whole process of technology

At present, the passenger car tire almost all can do the anti prick treatment, the principle of this technique is to use the automatic NC spraying equipment MPN glue evenly coated on the inner wall of the tire, tire forming protective coating a layer of 3-5mm, when the diameter below 6mm in sharp objects piercing tire quickly when be MPN compound coating wrapped tightly without leakage; when the sharp objects are pulled out, perforation is MPN rubber coating instantly filled and sealed, effectively solve the vacuum tire stabbed rolling or discouraged trachoma caused and slow leakage phenomenon; similarly, MPN rubber coating can withstand the tread 10cm long wound without leakage. With every car 4 tires, a tire puncture preventing processing time required for 1.5-2 hours.

Give you about MPN glue, MPN glue is a semi-solid gel resin, high toughness, high polymerization degree, high peel strength, memory and self repairing characteristics, softening point temperature is 110 ℃, cold bending crack free, at -40 ℃ -110 ℃ temperature range can be maintained the performance of the same.

This experiment is very simple, we use the test vehicle for the anti prick treatment tire, directly on the test board and two blocks over, the two pieces of test board is a piece of 5 nails installed, and the other is a triangle plate installed, the two things in our daily the road on the way to the tire is a great threat.

Manufacturers technology full of confidence, said test can be reached 60km/h in the vehicle speed, but the site and the test board is too small, if the speed is too fast will roll up the test board to fly, not very safe, so we have to vehicle idling in the D block to pressure test board. After finished the test 1, test 2 and test completed in 1 hours, we have measured the tested tire pressure, and tire pressure does not have any change, are kept in the 2.85bar (do not represent the actual standard of car tire pressure).

Tire after the upgrade, four tire weight increase of about 6-8kg, fuel consumption is increased, but the show was not obvious, for many large cars, 6-8kg weight is negligible. We do the anti prick treatment is for the purpose of security, to increase the unsprung mass brings in performance or fuel consumption factors, in the car will not be reflected very direct.

Tire during the upgrade, MPN glue evenly coated on the inner wall of tire high speed rotation, the tire wall mirror like smooth, so after the upgrade of the auto balance and upgrade without much difference. MPN glue is semi solid rubber tire and tire, sprayed on the inner wall is very fit, does not affect the ehardness of the tire, in the running process can absorb the tire contact with the ground and produce vibration and noise, so after the upgrade the car noise can be reduced, the ride comfort can be improved.

More useful car tools like Launch X431 IV andGM Tech 2 can help you do better on cars.

Wednesday, October 30, 2013

Car air filter should always check

Spring in the north, sandstorm surprisingly high, in addition, the car high speed splashing of small stones and summer common bug liquid will bring harm to car paint. In addition, the acid rain ingredients with a strong corrosion function on the car paint, in the course of time will cause damage to the car paint, so in the rain more spring, change garments according to the maintenance of the car must not ignore waterproof work. In change garments according to the maintenance, it is best to give the car a paint beauty. More long more effective sealing glair is beauty, this will give the vehicle wearing an invisible protective coat.

According to introduction, sealing glair car paint brightness and hardness are improved, the car can take on an altogether new aspect. So the repair experts unanimously recommended the glazing, its effect is very obvious, can keep the car paint smooth, bright, but also to prevent acid rain erosion car paint.

It seldom owner window ventilated breathe freely, the car amassed a bacteria, the spring temperatures rise, coupled with the humid air, is all sorts of bacteria multiply growth season, so pay special attention to vehicle interior control work, let the car interior clean health, especially for car cushion, air outlet these health corner more to do cleaning work, keep the environment inside of dry clean.

Repair experts say, first of all, can give automobile "sauna", through the high temperature steam can remove the air vent, seats, interior equilateral side corner of the besmirch, also can remove the peculiar smell of the car. Then, the interior cleaning agent and then a dedicated for cleaning and disinfection of the console, door and other parts.

Repair experts remind owners, in their own for car interior cleaning, use neutral detergent to wash, do not use material cleaning, contains a strong acid. In addition, the cleaning to avoid audio, radio, CD and other electrical equipment and water from corrosion.

Nose in car air filter is equivalent to the human, is the first "levels" of air entering the engine to go through, its role is to filter out the air in the sand and some suspended particles, so that the air entering the engine is purer, so as to enable the engine to work normally. Spring air contains more dust, sand grains, the air filter is prone to jam, then the engine will appear not easy starting, idling instability symptoms such as weakness. General automotive air filter in the 20000 km to change a, 10000 km of the check, the spring is best in 2000 kilometers will check again, it is good for engine.

In addition, after a cold and snowy winter, chassis and tires detection cannot neglect. To thoroughly clean the chassis, to conduct a comprehensive inspection of automobile tires, especially for the four wheel drive SUV will have four wheel positioning, because its security work will directly affect the quality of vehicle and fuel economy.

Master some common sense about car is important,but you need to know how to choose car diagnostic tool like MB Star C3.

Friday, October 25, 2013

Tire maintenance can not be ignored

In the face of continuous high temperature weather, in some fans forum, discussion about summer tire pressure should be high or low is very fierce. Some owners think, summer high temperature, thermal expansion and contraction, the tire pressure must be higher than winter heating, easy to burst, so the tire pressure is low. And the owners think, if reduce tire pressure, tire friction with the ground increases exponentially, the tire temperature will rise sharply, tire become soft, sharp drop in strength. So, if the vehicle speed, can cause blowout. So, the summer can not only reduce the tire pressure, should also be adjusted upwards.
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What is summer tire pressure high or low? Tire pressure is reduced, will bring two consequences, one is the tires, the tire will shorten the life of fuel consumption will increase two. However, to reduce the tire pressure will also reduce the risk of tire. The summer due to high temperatures, particularly travel at high speed, speed of 100~120 code, the tread temperature will reach 80 degrees, and even more than 100 ℃, increased internal pressure. As for the increase of tire pressure, the only use is to reduce fuel consumption. However, increasing the tire pressure in addition to may burst, but also bring a lot of adverse factors, such as the braking distance increases, the driving safety adverse. So, the summer should be low tire pressure.

In addition to high temperature in summer, and the rainy season, the tire in the rain in the past, the requirements of the tire is naturally increased. Therefore, the rainy season tire tread depth must not be less than 1.6 mm, preferably in more than 3 mm. Because the drainage capacity, decreased tread depth is too shallow, tire tire, causing wet grip drops, affect the safety of driving, especially the rear tire possible spin or drift phenomenon in turning.

When the outdoor temperature is high, the car park to the shade, the body temperature falls as well, don't be impatient with cold water and other means for the tire temperature. The best filling nitrogen in the tires, because the tire inside the gas itself is ordinary gas, because nitrogen is inert gas, and nitrogen is not easy to heat burst tire. If a tire, don't slam the brakes, but should be light "point" brake while the hands grip the steering wheel, try to make the vehicle to maintain a steady, parking and slowly pull.

Running on an uneven road, one must choose the road, reduce the tire and the road bumps, avoid mechanical damage and tire; two is decelerating, avoid tire bump and strong vibration. Muddy sections, should choose a solid, non slip through, so as not to tire subsidence, in situ idling, violent vibration caused by tire and tire side badly cut, scratch.

In addition, to select qualified tire and tire change regularly. A flat tire caused by many reasons, the tire performance deterioration is the arch-criminal. Tire even more durable, can not be a lifetime. When the tire wear, wire layer gradually fatigue, the tread of aging, will weaken the performance.
Besides,Car and car maintenance is a hot topic among young people.So,how to choose best car tools is also popular with people.Here recommend some like VAG Diagnostic Tool and GM Tech 2.

Tuesday, October 22, 2013

The basic common sense to extend the service life of engine valve mechanism

Gas distribution mechanism as an important part of the engine, the service life of the engine and whole life should be consistent, but in the use of often found in valve life is far below the whole life of engine, especially the valve, valve seat, valve guides and other major parts of short life, often in the two or three level maintenance, some parts have been more than limit the use and require early replacement, resulting in a tremendous waste of. This article on the superficial and prolong the service life of valve mechanism of.
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The main reason, gas distribution mechanism of early damage
1.Repair of poor quality in the repair work is the problem of valve and valve seat surface machining quality is not up to the requirements, resulting in the work surface ablation, depression and early damage; camshaft bearing a scrape its clearance, contact area, each bearing concentric degree is not up to the requirements, the accelerated wear, the abnormal sound caused by early damage; valve guide in replacement parts, the reaming quality not up to the requirements, directly affect the service life of the valve and valve seat.
2.Repair data improper application: repair cannot scientifically choose the repair parts data are important reasons of early damage. If the valve and the valve seat contact width, provisions for 1~2.2mm inlet valve, exhaust valve for 1.5~2.5mm. But in the repair, people tend to think a bit wider than the narrow point of insurance, used to choose upper or close to the limit, the car valve face width and the newly repaired is approaching the limit. Another example of valve clearance, general motors for 0.2~0.25mm, but in the maintenance and adjustment also mistakenly believe that the gap is a bit bigger than a good point, therefore, the use of ultra limit. In fact, the gap is too large, not only reduces the power of the engine, but also the percussion sound (valve port since the early damage).

Matters needing attention in repair
Valve repair manual work in more technical differences due to maintenance personnel and cognitive bias , maintenance quality is difficult to meet the requirements ; therefore should be particularly emphasized in the maintenance of gas distribution sector service quality, and to take effective measures to improve the quality of maintenance to prolong its life.
1.Valve polishing: in repair operations, such as valve ablation, pits and depressions, all should be light grinding (serious when need replacing valve). Usually in the valve grinder, operations should pay attention to four issues: one is to ensure that the valve head and the rod of concentric, otherwise should first straightening; two is to grind the premise of complete cone as small as possible light grinding capacity; the three is to improve the surface finish; four is the valve end depression should be removed.
2.Valve seat reaming : valve seat reaming is usually manual labor , should pay special attention to three issues : First, eliminate depression , spots, could hinge on the basis of a complete cone , reaming amount as small as possible ; Second, even when forced to reaming , closing knife from the knife lighter , less hinge to observe in order to ensure reaming less volume and higher finish ; three are equipped with valve test to determine the location and width of a good face . Position should be adjusted to the lower part of the valve cone , partial or biased available under the upper and lower mouth reamer to adjust. Working width , the intake valve can be controlled by 0.9mm ( defined as 1 ~ 2.2mm), the exhaust valve can be controlled by 1.4mm ( defined as 1.5 ~ 2.5mm). Practice has proved that the width of the valve and valve seat grinding , the intake valve up to 1mm, the exhaust valve up to 1.5mm, were lower in the predetermined width , can greatly improve the service life.

Ok, if you want to find more some car diagnostic tool to help you, here recommend some hot ones like GM Tech 2 Scan Tool and Mut 3.

Thursday, October 17, 2013

Automotive air conditioning at least cleaned once a year

Summer is a rainy season, easy to cause the air conditioning system and air filter moisture, air conditioning and a very high frequency, easily attached to dust and dirt in the air blower, air duct and other places, rainwater and water residue plus, it is easy to cause moldy and breeding of bacteria, not only easily lead to odor problems, and may be hazardous to drivers and passengers the skin and respiratory system, baby take the family car they should pay more attention to the problem.
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Therefore in the air-conditioning before deactivating a cleaning sufficiently complete essential, air conditioning, ventilation pipe filter, an evaporator, not one less, maintenance also has many matters need attention.

For example, do not use water cannons in cleaning the condenser, so as not to damage the fins, or cause a short circuit or failure, at the same time, remember to clean the condenser and the gap, between the radiator to avoid blockage; it is best to use special cleaner cleaning evaporator, from the inlet port injection, let the tiny bubbles into the air conditioner body, long time adsorption in the surface of the evaporator, so no washing can remove the dirt; when the automobile travel up to 8000 kilometers to 10000 kilometers, air filter should be changed, when cleaning with compressed air from top to bottom clean, then put in a few hours in the sun, remember not to wash with water.

Many people like to drive cars in circulation, to avoid the car pollution, but if the air-conditioning components did not completely clean, the same bacteria will breed, enter the body through the respiratory system health, this point have to be alert to.
The proper use of air conditioning methods, should be in the cooling off before it reaches the destination, so all air blowing out cold air inside, avoid them remaining in the pipe, condenses into water is moldy "fuse." If you did not follow the correct way to use air conditioning, a summer past, the cooling effect will gradually become unsatisfactory, causing car smell, and may shorten the life of air conditioning.

It is growing cool, recommended that owners who can use less air conditioning and more windows open for ventilation, while allowing less air conditioning refrigeration and more natural wind blowing, try to make the evaporation of the water tank dry.

If there have been odor, check the mildew problem. General filter can simply use water to clean mold to solve, but if using a carbon material is best to take the 4S shop or repair shop please professional chefs to help.

Air conditioning cleaning cycle is usually every six months, in a long time before and after the use of air conditioning maintenance can be carried out once. Some experts suggested that, even in the winter it's best to carve one or two air-conditioning, activate various components keep them in good working condition.

Here also recommend the useful and hot car tools like Auto ECU Programmers:

UPA USB Serial Programmer with Full Adapters was used to do motorola chip programming.Similar product with upa programmer is Xprog-M programmer.
Functions:

UPA USB Serial Programmer with Full Adapters was used to do Motorola Chip programming.

Monday, October 14, 2013

The driver should make full test of the car before you going to a self driving tour

Car owners usually in the driving of vehicle tests include: startup, vehicles have abnormal sound; each lamp can work normally; brake system is normal; check the oil line. No leakage of oil, gasoline, oil pipelines are aging; wiper can work normally; check the tires have no crack, crack, tire pressure is appropriate; check the tires have no loose, spare tire can work normally; the car repair and maintenance machine professional structure do routine maintenance and inspection long before.
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In these basic checks done, there are several critical examination can not be ignored. First, the engine prior to travel during the holiday must be cleaned in advance to carry out maintenance on the engine and check the engine oil, antifreeze usage insufficient to timely add, expired must be promptly replaced. Main engine maintenance cleaning lubrication system, fuel system, cooling system and other aspects.

Under normal circumstances, the vehicle every 5000-10000 km it for cleaning and maintenance time, in addition, in the face of engine noise is too large, accelerate the powerless, the water temperature is too high will also be cleaning and maintenance; two, gear box, in the long-distance travel, maintenance of gearbox is also very important. Automatic transmission in the car every 20000-25000 km, cleaning and maintenance time, or in case of transmission slip, high temperature shift delay, system leakage, cleaning and maintenance time. The removal of harmful sludge and varnish deposits, restore the gaskets and O ring elastic, make gearbox shift smoothly, improve the power output, automatic gearbox old oil replacement and; three, car steering system, general every 40000-45000 km when the vehicle steering system needs cleaning and maintenance time, or in case of difficult steering leakage, system, replacing the power steering machine accessories, also be cleaning and maintenance time.

Snow and ice days prepared anti-skid chain.The anti-skid chain type of market has anti-skid chain metal (steel mesh chain, steel ladder chain), TPU tendon anti-skid chains (TPU imported rubber mesh chain), advanced resin rubber anti-skid chain (special cloth), prices for different materials and different. According to the structure can make the anti-skid chain is divided into two kinds: one kind is already connected to the anti-skid chain hood shaped; another is cross installed several separate anti-skid chains, it is relatively simple and cheap, but less convenient installation. Especially need to remind owners, in order to avoid accidents, to buy time to pay attention to watch the product packaging logo, product manufacturers whether it have formal certification.

Anti-skid chains of iron bigger to tire damage, recommended for most car drivers choose is rubber or leather anti-skid chains, truck drivers choose anti-skid chain iron more. Due to the use of less frequency, experts suggest that private car owners to choose the kind of iron coated with rubber material has the antiskid chain cover type, the price is cheaper, at about one hundred yuan, can be repeatedly used for many times. The owners in the choice of the anti-skid chain, must first make sure your car is a front wheel drive and rear wheel drive, the tire chains must be installed in the play a major role.

Here also recommend the useful and hot car diagnostic tool like:

Maxidas DS708 is a state-of-art diagnostic system that delivers more accurate, more stable, more comprehensive, easier and faster diagnosis. The new generation platform stands out in a variety of tools by providing incredibly high performance with intuitive operation. Right for the first time, workshops and technicians could find an OE-level diagnostic solution designed for the aftermarket. The DS708 is the key to gain customer confidence and boost your bottom-line. New DS708 package cancel USB cable, please pay attention.

Wednesday, October 9, 2013

Vehicle brakes should always maintain

Phenomenon: The car is moving, or continuous kicks foot brake, the brake pedal were riding in the end, brake suddenly failed.
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Reason:
1.The total pump cup is broken or stepped over.
2.Brake pipe joints out of line or a serious rupture.
3.Pump cup is broken or stepped over.
Diagnosis: Hydraulic brake system to produce the reasons for poor performance of the brake, the brake pedal stroke generally, depress the brake pedal hard and soft feeling after the brake pedal when the brake pedal is increased stability and height to determine
1. When the brake pedal height generally too low, bad braking efficiency. Such as continuous feet or foot brake pedal height increased, and the braking efficiency improvement, the brake drum and the friction sheet gap or general pump piston and push rod is too large.
2. Maintain the braking pedal, if the height of slow or rapid decline, the rupture, the brake line somewhere joint sealing bad or pump the leather bowl sealing side, the return spring is too soft or broken, or the total pump leather, leather ring sealing side, the oil return valve and outlet valve is bad. The first step under the brake pedal, observe whether the brake fluid leakage. If the external normal, you should check the pump or pump failure.
3. Several foot brake pedal height, remains low, and in the second foot brake, feel general pump piston does not return, the brake pedal is a main pump push rod and the piston knock noise, is the total pump cup rupture or return spring is too soft.
4. Continuous brake pedal height kicks slightly increased, and a bomb sexy, indicating that the brake pipe penetrate the air.
5. Consecutive kicks, pedals were riding in the end, and felt no pedal reaction force, indicating that the master cylinder brake fluid reservoir chamber heavy losses.
6. Consecutive kicks brake pedal height is low and soft, is the total liquid storage chamber into the hole in the plug vent blockage.
7. A foot or both feet and brake pedal height, proper, but too hard bad braking efficiency. Gap should check the wheel friction film and the drum is too small. If the normal space, then check the drum wall and the situation of friction surface. Such as normal, then check the brake spring is excellent, general pump or pump cup is bloated, the piston and cylinder wall with is loose. Such as normal, it should then check the brake hose is not clear whether aging.
Good maintenance play an important role in car,but you also can find some hot car tools like obd2 scanner and T300 Key Programmer to help you solve the car problems.