posted by admin on Sep 29
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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Go Online and Look for Auto Parts and Accessories
Do you have a domestic or import car? Or perhaps a SUV or a truck? Whatever kind of automobile you have, surely you are concerned with finding the best auto parts and accessories that would complement it. It can be pretty tiring indeed to make rounds and go to stores and shops just to look for the best with the most competitive prices. Well, you need not make the actual rounds anymore at actual auto parts and accessories. What should you do, then? Well, just go online! The World Wide Web is teeming with great online stores or shops were you can find a wide selection and unbeatable assortments of auto parts and accessories. The main attraction? They are available at wholesale prices! If you are worrying about deliveries, you can pick them up yourself! Many online companies perform the function of either wholesale distributors or resellers of a wide range of auto parts and accessories for the 600 or more automotive parts and accessories manufacturers all over the world. According to a recent report, the annual spending of the worldwide market for different automobile parts and accessories reach billions. So how do you search for the particular car parts you need? Well, you just have to log on to a search engine like Google, Yahoo! Or MSN then enter the particular model, make or brand of auto parts and accessories that you need. Presto! You will find many web sites that offer the things you require for your beloved vehicle. You are also going to be offered with a choice of whether you like a new or used part or accessory for your car, truck, RV, etc. Thousands of online auto parts and accessories also offer a great range of discount prices for their stuff. And they are offered all over the world, they can be accessed 24/7 and you need not worry because their online sales are based from real time and secure inventories. If you are quite a busy person, it is very convenient to just log on into online stores from all over the world and find major sources of parts and accessories that your vehicle requires. Shopping for car parts online will also benefit you greatly since the web sites offer lots of free information and advice. They also provide news and updates regarding upgrades in automotive parts and accessories. These allow you to make informed assessment regarding the qualifications and experience of the online vendor you are considering buying from. Not enough information about purchasing aftermarket auto parts and accessories? Well, you can also avail of free advice for these matters and many other concerns you may have concerning your vehicle and the specific part and accessory that it needs. Online stores and shops also have many catalogs that feature a complete selection of original equipment manufacturer (OEM), replacement automobile parts and accessories and all of the top makes and brands of aftermarket performance auto parts and accessories. What more, they are often available for low, low discounted prices!Kay Zetkin writes information about everything on wheels. Get help in finding the <a href=http://autoparts-direct.com/>Auto Parts and Accessories</a> you need.
Source: www.ArticlePros.com
