Use Spark Plug to Knowing Condition of Your Engine

Many ways to know the state of the engine. One of them can be seen from the color and condition of spark plugs. If you have spare time this weekend, try to open the spark plugs and notice, if such instructions below?

Brown: In the electrode slightly grayish brown signs spark plugs working normally, but approaching the lifetime limit. We recommend that you replace the new.

Yellowish: Engine overheated, so the temperature and pressure in the engine rises drastically. Check engine cooling devices.

Obsolete: Spark plugs worn with a little pile like a crust on the electrode. Spark Plug has been condemned and need to replace new.

Reddish: electrode layer peeling with reddish color, but no crust. Machines have overheat, check the heat range code and engine cooling devices.

Coral: There are a heap of charred crust and colored electrodes. That is, setting the fuel is not true. check the supply of gasoline and other electrical devices.

Melt: The electrode melts and looks burnt, due to the spark plug with incorrect heat range. A leak in the engine component that causes the lubricant also burned in the engine room.

Thick crust: a thick crust piled up on the spark plug electrodes and the head caused by poor fuel consumption. A leak in the seals on the valve that makes lubricant seeping down to the spark plugs.

Wet: There is a residual lubricant on the electrodes and the head of the spark plugs, experiencing engine detonation. Check the ignition timing or use the appropriate fuel specification denngan machine.

Crooked: Electrodes attached to the head caused by the piston hit the spark plugs. Check the engine's internal components.

Stuttering: the car stalled and sudden death. the possibility of coil hot car. Immediately turn off the engine and compress coil with wet mop.

Why AC Cars Smelly and Not Cold?

While driving, dealing with such conditions, must be very miserable because there was no air conditioning (AC).

Until the air conditioning could not function due to negligence of the owners do care. Age can also use components or high frequency of use. More worsened again, many car owners who lay on the AC. So when performing many of baseball to understand about the service.

Here are some indication that occurs in the AC car

Less cold the trigger comes from the compressor. According to people work in automobile, the magnetic clutch is worn or broken there is a magnetic bobbin. As a result, drain the freon compressor work is hampered.

For another, there is a leak in the evaporator inflict freon wasted. You must replace only if welded only hold for a while.

The smell less pleasant reason, the interior is dirty conditions caused passengers to bring food habits. The smell of leftovers can be attached to the seats, door trim or carpet. smoking habits have contributed to donate go bad smell.

Strange sounds when turned on Origin of compressor noise is usually problematic. The bearings in the compressor is worn out or broken compressor make noise. Others, coming from the blower. For some brands of cars, the position of these components exist in the glove compartment. If a drawer full of with books or objects and then sucked lightly, immediately making a sound.

Freon This condition is often less because there is a leak in the hose or evaporator, so that freon wasted. Generally Freon reduced after the use of over 2 years. You should drain and recharge freon . Instead, do check and clean the compressor every 2000-5000 km.

10 song for Assessing Quality Audio

 Matt Kirsch hear a variety of songs and audio reproduction, good vocals, instruments in the Chevy Cruze

DETROIT - To get the best audio reproduction quality, car manufacturers began to exploit the audio engineers, with the ability to "hear" the best. One of them is Matt Kirsch, now working for General Motors (GM).

Matt has developed an audio system for the Chevrolet Cruze and spend 500 hours more a year to hear the sound reproduction songs, good vocals, instruments to the background stage.

Matt provided the following tips could be useful for those who like to listen to the songs through car audio, especially on the quality of sound reproduction.

Explained, listen well and look at sound reproduction produced by the following 10 songs in your car audio. Matt judge, the ten songs have a characteristic that could determine the quality of car audio.

Here are the 10 songs 

1. Do not Know Why, Norah Jones. Norah's voice is a natural right in front of you. 

2. Diamonds and Rust, Joan Baez. Strong vocals, and detailed sound musical instruments spread across the stage. 

3. No One, Alicia Keys. Vocal clarity and extensive background sound. 

4. Hotel California, Eagles. Clarity and dynamic guitar solo at the beginning of the song plus the power of drum beating. 

5. Boom Boom Pow, Black Eyed Peas. Powerful and accurate bass beats, including the large volume. 

6. Rock That Body, Black Eyed Peas. The lyrics are clear and clean in between the powered bass beats. 

7. Hide and Seek, Imogen Heap. The atmosphere that surrounds the song, produce a dynamic vocal and open. 

8. He Mele No Lilo, Mark Keali'i Ho'omalu from the Lilo and Stitch's movie. Scene and the stage of children's choirs, pounding bass-powered counterbalanced. 

9. Bird on a Wire, Johnny Cash. Voice clarity typical of Johnny and his guitar are natural. 

10. Packt Like Sardines in a Tin Box Crushd, Radiohead. Blows strong bass drum percussion and metallic twang.

Types of information systems

Most businesses that flourished in this era requires some information systems are always developed by the managerial them. System information found in textbooks of the 1980s is a pyramid system that reflects the hierarchy of an organization, usually the processing system located at the bottom of the pyramid is always followed by a management information system, is the executive decision makers at the top to help them carry out their duties.

A four level pyramid model

Some businesses that have information on this operating system using the pyramid method. Since it was first formulated some of the technologies and new categories were also developed from existing information systems. Some examples of types of information system are:

• Data warehouses
• Enterprise resource planning
• Enterprise systems
• Expert systems
• Geographic information system
• Global information system
• Office Automation

source : everywhere

Make Frame Car Body Only One Minute

Frame body electric car made by Teijin thermoplastic CFRP process. Just takes a minute!

TOKYO - Want to make a concept car in one minute? The technology recently developed by Teijin will be very helpful. The reason, by using carbon fiber reinforced plastic and thermoplastic press (printing machine), the process lasted only one minute. Thus be explained by the Japanese company last week.

Teijin also showed the framework of the body is called "white body" the size of small vehicles and manufactured by the process of carbon fiber reinforced plastic (CFRP) thermoplastic. Sample frame cabin has been fitted with an electric motor, suspension, seats, and tires and can speed up 60 kph. Amazingly, it weighs only 47 kg or one-fifth the weight of frame cabin made from the plate. The number of components is also not much, only 20 items!

Component mass

Further, this new technology not only to create the framework of the cabin, but also other car components. "Especially the components that must be produced in bulk and need a quick time," explained the company in a release. This technology combines injection molding processes (injection molding) CFRP thermoplastic with the print press (press molding).

Other types of resin, namely polypropylene (PP) and poly-amide (PA), can also be used. Components in the example model of the car body frame shown Teijin made of PP and PA is formed with the printing press and injection molding.

In the printing press, the material is processed by mixing carbon fibers with thermoplastic resins. For this, use two ways. First, the basic materials have been prepared in line to make it really strong in a limited way. The second method, the basis of isotropic material, the force produced by the same in all directions and make the material easily bent to different shapes.

Injection molding process includes the use of long fiber containing pellets (long thermoplastic pellets or LTP) which is used to process the material. Although strength is not as strong as if made by printing press, LTP suitable for making components with complex shapes such as a connection. Even the process can be done using existing injection molding machines now.

For CFRP connection, Teijin still use the seam (rivets) to prototype metal body frame they make. Connection technologies will be developed for the process of making components more quickly, in under a minute.

For the latter, the process is not described in detail. Teijin just say, it's the same with welding workmanship using the alias does not use glue at all. This method can also be used to combine different materials such as CFRP with metal. In addition to auto components, the process can also be used to make tooling and robot components.