what is the difference between spark plugs
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Difference Between Iridium and Platinum Spark Plugs Iridium vs Platinum Spark Plugs. Aside from the very common copper spark plugs, there are two other options for most users; platinum and iridium plugs. Both types have the very same parts and construction, the only difference between iridium and platinum spark plugs is the metal used for the center electrode. As you may already have figured out, platinum plugs use platinum while iridium plugs use iridium for the tip of the center electrode.
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How Automobile Ignition Systems Work Spark plugs use a ceramic insert to isolate the high voltage at the electrode, ensuring that the spark happens at the tip of the electrode and not anywhere else on the plug; this insert does double-duty by helping to burn off deposits.
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How Spark Plugs Work High-end spark plugs made with exotic materials will cost more, but they'll also deliver better conductivity and spark. Next, we'll learn what we all want to know: the basic rules for changing spark plugs.
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Spark-ignition engine The term spark-ignition engine refers to internal combustion engines, generally petrol engines, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug.
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How to Replace Spark Plugs Overview. You already know that spark plugs wear out. Well, “burn up” is more like it, because when a spark jumps the gap between two electrodes, it actually burns off (erodes) minute amounts of metal from each one. Over time, the gap grows to the point where the spark can no longer make the jump.verview. You already know that spark plugs wear out. Well, “burn up” is more like it, because when a spark jumps the gap between two electrodes, it actually burns off (erodes) minute amounts of metal from each one. Over time, the gap grows to the point where the spark can no longer make the jump.
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How Often Should I Change My Spark Plugs? Take the spark plug, for example. Spark plugs – which come in two sizes, 5/8ths and 13/16ths of an inch – are a critical component to your engine. They provide the electrical spark from the ignition system to the combustion chamber. Spark plugs can cause damage if they’re allowed to erode without replacing them.
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Spark plug Spark plugs may also be used for other purposes; in Saab Direct Ignition when they are not firing, spark plugs are used to measure ionization in the cylinders – this ionic current measurement is used to replace the ordinary cam phase sensor, knock sensor and misfire measurement function.
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- At the 'b' point, partway through the rise in voltage, the spark plug reaches the discharge voltage and a spark is generated between the electrodes. Between 'b' and 'c' is called the capacitance spark. At the start of the discharge, the spark is generated by the electrical energy stored in the secondary circuit.
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Spark plug A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.
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- The correct spark plug and gap is crucial to proper ignition. Spark discharge is a breakdown in the air insulator between the electrode and ground. Yes - air is an insulator, a pretty good one at that. As voltage builds at the electrode, atoms in the air within the air gap gain electrons. This process is called ionization.
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- Rather then having spark plugs mounted on the sides of the engine, wires running to a distributor, the spark plugs in this engine are on top of your engine, and are connected directly to the ignition coil. Everyone has a different way of changing out the spark plugs, and everyone says there way is the best.
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How Automobile Ignition Systems Work The spark plug is in the center of the four valves in each cylinder. ­The spark plug is quite simple in theory: It forces electricity to arc across a gap, just like a bolt of lightning. The electricity must be at a very high voltage in order to travel across the gap and create a good spark.he carmaker will select the right temperature plug for each car. Some cars with high-performance engines naturally generate more heat, so they need colder plugs. If the spark plug gets too hot, it could ignite the fuel before the spark fires; so it is important to stick with the right type of plug for your car.
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Spark plug Spark plugs are specified by size, either thread or nut (often referred to asEuro), sealing type (taper or crush washer), and spark gap. Common thread (nut) sizes in Europe are 10 mm (16 mm), 14 mm (21 mm; sometimes, 16 mm), and 18 mm (24 mm, sometimes, 21 mm).
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- Engines need three things to work: fuel, oxygen, and an ignition point. The glow plug provides that ignition by heating the element (which is the small coil of wire inside the plug). This is usually done with a 1.5v battery contained in a glow ignitor. Some of the more recent vehicles have on-board batteries that ignite the glow plugs as part of an electric starting system.
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Should You Replace Your Spark Plugs? As we've already said, the spark plugs are the business end of the ignition system. Whether an engine has a conventional distributor or a direct ignition (distributorless) system, a good set of plugs is absolutely essential for peak performance.
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Spark Plug Size Chart Spark plugs are available in three common sizes. The first size is 0.8125 inch long. The second size has a length of 0.750 inch. The third size measures 0.6875 inch long. Every plug usually has a gap measuring somewhere from 0.035 inch to 0.070 inch. Aside from its use in vehicles, this electrical device can also be used to ignite combustible mixtures in furnaces. For this particular type of application, some people refer to it as flame igniter.
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What is the difference between an SI engine and a GDCI engine? Air fuel mixture is inducted in the intake stroke through an intake port, followed by compression stroke. Charge is then ignited using a spark plug, flame front covers the whole chamber and you make power. The image above is a GDCI engine i.e. gasoline direct compression ignition engine.
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- When to change spark plugs. Your vehicle owner’s manual should offer a recommendation on when to replace spark plugs in your car. Typically it’s around every 30,000 miles, but will vary by car and may be longer for newer model cars.Spark plugs come in different materials and newer platinum and iridium spark plugs last longer than old copper ones.ypically a spark plug replacement at a qualified auto repair shop will cost between $100 and $200. A Toyota Camry will likely be on the lower end of the range, while a Mercedes-Benz sedan will be on the higher end of that range (or even exceed the range depending on the model and where you take the car for the repair).
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- Spark plugs with a high degree of heat dispersal are called high heat range (cold type) and those with a low degree of heat dispersal are called low heat range (hot type). This is largely determined by the temperature of the gas inside the combustion chamber and the spark plug design.
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Copper Spark Plugs vs. Iridium and Platinum: Understand for Top Performance Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.
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How Often Should Spark Plugs Be Replaced? Look for plugs made from iridium or platinum for the longest life (copper has the shortest lifespan – generally about 20,000 miles). Oil Leaks: When you pull a spark plug out of the engine, the base should be relatively clean. If there is oil present, it means there’s a leak. Not only does that mean you’ll need to replace a blown seal, but it means your spark plugs will need to be changed more frequently because of contamination.
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-   Answer     The area on a spark plug where the spark takes place.   Answer     Spark plug gap is the distance that energy must breech to complete an … electrical circuit. It varies fron manufacturer to manufacturer but plug gap must be correct to within .003 to meet spec. Any plug that is out of spec.he spark plug gap refers to the distance between the electrode and the ground point on a spark plug. The gap needs to be set to the factory recommended setting to fire proper … ly. Too much and the spark is weak, too little and there isn't enough spark to fire the mixture.
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- TT. spark plugs require a 16mm socket, I got my wrench on sale, only cost $50 shipped. Find a nice deep socket 16mm, and an extension for your rachet, and you'll be fine. Plugs are under the big plastic engine cover.Take that off with the 3 plastic connectors. Quarter turn, and they release.Cover comes off easier if you lift the back first, otherwise it wants to get wedged over the engine.ind a nice deep socket 16mm, and an extension for your rachet, and you'll be fine. Plugs are under the big plastic engine cover. Take that off with the 3 plastic connectors. Quarter turn, and they release. Cover comes off easier if you lift the back first, otherwise it wants to get wedged over the engine.
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Why You Should Change Your Spark Plugs Engine misfiring, in which the engine halts for a moment and then continues on as if nothing happened, is one sign of trouble. Engine surging is a signal that this heart of the automobile is having combustion problems, and spark plugs are part of that difficulty. A lack of acceleration is also a danger signal.
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Should You Replace Your Spark Plugs? The typical spark plug needs anywhere from 5,000 to 25,000 volts from the ignition coil before it will fire. The exact firing voltage depends on: Plug gap-the wider the gap, the higher the voltage required. The gap must be set to specs for good ignition performance.
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- The spark plug wire on a lawn mower is designed to carry the spark produced by the spark plug to the engine,... spark plug boot is a cover, usually made of a rubber compound, that seals the connection between a spark plug wire and the spark plug.