Top Autos

Finding BMW Spares Can Be Easy
BMW is a well established brand in the automotive industry. This makes finding BMW spares easier for the back yard mechanic. The local breaker or salvage yard is a great place to start looking for that special part you might need. There are all kinds of undiscovered treasures lurking inside the gates of these facilities. Even better, the price of the salvage parts is usually much less than from other sources. There are some things to think about when you decide to purchase a BMW spare that is salvaged. Most important is the safety of the part. Anything structural should probably be purchased new. It is hard to tell what kind of microscopic damage could have happened during whatever accident brought the original car to the salvage. When it comes to safety, play it safe. Pay the extra money to purchase from a reputable dealer. An added bonus is that new purchases often come with a warranty. BMW spares can also be bought on the cheap over the internet. Online auction sites, like EBay, often offer the one part you must have. To save guard your investment in these parts, check the history of the seller. It is usually a good idea not to buy big ticket items from a seller you don t know. Buying BMW spares, or any automotive spares, online can also get you with hidden costs. Shipping and handling for the heavy parts can sometimes run more than the part itself. Search around, read the fine print, and compare the total cost with something you could get locally. You may be surprised to find out that local is actually the least expensive way of doing business. Because of the popularity of some automobiles, it is usually easy to find cars to fix up and the parts to do it with. BMW spares can be found online at shops, online at auction sites, and locally at breakers and salvage yards. Look around and find the best price for the part you need. Kathryn Lang is a freelance writer covering the motoring industry. She has written various articles on <a href="http://www.247spares.co.uk/bmw">BMW parts</a> and <a href="http://www.legalstreets.com/bmw/">BMW cars</a> in general.
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Igniting a Spark
Your Volvo has thousands of parts in it. Some play a crucial role in the car, while others do not. Some are used all the time, while some are needed only for a specific time. One of the latter is your Volvo’s ignition coil. Also called a spark coil, the ignition coil is an induction coil in the automobile’s ignition system. The Volvo ignition coil transforms a storage battery’s 12 volts into the thousands (which sometimes could reach as high as 120,000 volts) needed to ignite the spark plugs. Invented by A. Kent Atwater in 1921, the ignition coil is a simple transformer that has two sides: the 12 volt or primary side and the high voltage or secondary side. The primary side contains a few hundred turns of a large diameter wire and it builds up the magnetic field in the coils. On the other hand, the high voltage side contains thousands of turns of small diameter wire. The coil uses electromagnetic induction to create the high voltage. When the voltage in the primary side is turned off, the collapsing magnetic field in the secondary side induces a voltage in the secondary side, producing thousands of volts. In older vehicles, a single, large ignition coil would serve all the spark plugs, distributing voltage via an ignition distributor. In modern systems, the distributor is omitted and ignition is controlled electronically, instead. Much smaller coils are used with one coil for each spark plug or one coil serving two spark plugs (so two coils in a four-cylinder car). These coils may be remote-mounted or they may be placed on top of the spark plug (coil-on-plug or direct injection). Where one coil serves two spark plugs (in two cylinders), it is through the “wasted spark” system. In this arrangement, the coil generates two sparks per cycle to both the cylinders. The fuel in the cylinder that is nearing the end of its compression stroke is ignited, whereas, the spark in its companion nearing the end of its exhaust stroke has no effect. The wasted spark system is more reliable than a single coil system with a distributor and cheaper than coil-on-plug. Where the coils are remote mounted, they may all be contained in a single molded block with multiple high-tension terminals. This is commonly called a coil-pack. Your Volvo ignition coils are part of a larger system, which is the ignition system. The ignition system is part of an even larger engine system. The ignition system’s primary responsibility is the timely burning of the fuel-air mixture in the engine. Your Volvo user’s manual would carry the recommended service interval for your ignition system, including your Volvo ignition coil. Your Volvo engine might run rough, buck, surge, stall or even get poor fuel economy. These are signs that your ignition system might need servicing as they are potentially an ignition system problem. When this happens, drive to the nearest Volvo dealership and have a qualified technician take a look around. Your Volvo engine might be in problem in the long run. John Garrett is an automobile mechanic who knows every crook and cranny of his truck. He's also a vintage car enthusiast , and he's dedicated to fixing and restoring them. He is a motorist who believes in continuous research and improvement.
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The Carburetor, Will It Last?
Do you know if your car or motorcycle has a carburetor? Or, perhaps you are trying to figure out how in the world you are going to fix whatever is wrong with yours. The truth is that a little knowledge never hurt anyone. So, let’s take a closer look at what the carburetor is and what it does. You may not even have one to deal with! But, if you do, here are some facts to help you along your learning way about carburetors. What Is The Carburetor? The carburetor is a device on the engine of a car or other vehicle that mixes fuel with air. These are featured on internal combustion type engines. In most cases, the carburetor is no longer used though. Most cars now use fuel injection as opposed to the use of a carburetor. Nevertheless, the carburetor is still used on many small type engines and in older or specialized vehicles. Cars built after the decade of the 1980’s, no longer use a carburetor, but use an electronic, computerized fuel injector instead. In many cases, the motorcycle still used a carburetor. In most cases, engines that use carburetors only use one. But, in high performance vehicles and those with more than four cylinders, there may be more than one carburetor used. But, how does the carburetor actually work? Have you ever heard of Bernoulli’s principle? It says that moving air has a lower pressure than air that is still. That means that the faster the air moves, the lower the pressure will be. The throttle controls the amount of air that is allowed into the carburetor as opposed to the amount of fuel that is used. The vacuum that is created by the carburetor is what draws in more fuel into the carburetor and allows for faster flows of air. When it comes to repair work that is done on the carburetor, it is necessary to learn not only what is wrong with it but also what is needed to repair it and why that is. When you understand how the carburetor works, you can get a better idea of what is needed to repair it. And, you will need to consult a professional if the task is beyond you because not repairing the carburetor correctly can and does lead to more serious problems with the engine down the toad. Manufactures Of Carburetors There are several different manufacturers out there. Most are specialized in where they serve, who they serve or in the exact type of device they make and sell. If you are looking for a manufacturer, consider these. Ford Motor Company’s manufacturer of carburetor’s is Autolite. Japanese automobiles are often equipped with Hitachi, Ltd, Keihin, or Mikuni carburetors General Motors vehicles feature Rochester Carburetor. UK motorcycle carburetors are usually Amal Ltd. This article was made possible by <a href="http://www.carburetorcentral.info" target="_blank">http://www.carburetorcentral.info</a> Visit our site for other great information on carburetors.
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