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Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a 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 ...
May 20, 2019 · Copper Spark Plugs. Copper spark plugs are one of the most common choices on the market. Despite their name, only the inner core of these plugs is made of copper. Their electrodes are covered by a nickel-alloy coating. This type of spark plug is best suited for vehicles built prior to the 1980s that have low-voltage distributor based ignition ...
Feb 23, 2018 · Spark plugs with a hotter heat range will burn off carbon deposits more easily than a colder plug. “As an example, an Autolite copper 105 versus an XP Iridium 105 will have identical ceramic temperatures and the carbon burn off will be the same,” says Reeves. A spark plug’s reach is defined as the length of the threads.
- Spark Plug Basics. The primary function of the spark plug is to ignite the air-fuel mixture within the combustion chamber under any operating condition.
- NGK Spark Plug Heat Rating. The spark plug heat range has no relationship to the electrical energy transferred through the spark plug. The heat range of a spark plug is the range in which the plug works well thermally.
- Heat rating and heat flow path of NGK Spark Plugs. Some basic structural factors affecting the heat range of a spark plug are: Surface area and/or length of the insulator nose.
- Causes of Carbon Fouling: Continuous low-speed driving and/or short trips. Spark plug heat range too cold. Air-fuel mixture too rich. Reduced compression and oil usage due to worn piston rings/cylinder walls.
- Plug D esign. The metal center of spark plugs is exposed only on the ends. One end connects to the wire, bringing the spark. The other end holds two electrodes that, once the plug is threaded into the block, poke into the combustion chamber.
- Copper. Due to its high conductivity and resilience in the face of heat, copper cores are the oldest and most commonly installed spark plugs. Additionally, manufacturers love it because it’s the cheapest of the three to produce.
- Platinum. Platinum plugs are still copper at their core, but they are platinum plated on the ends to provide extra strength and increase lifespan. As a metal, platinum is stronger than copper, with double plated platinum being — you guessed it — even stronger than that.
- Iridium. The last type of metal used is iridium. Like platinum, it’s used on the end to fortify the electrodes for longer life. These are the most expensive plugs available, but they’re not technically higher performing, as they are also slightly less conductive than copper.
Feb 12, 2023 · The main spark plug types include copper/nickel, iridium, platinum, and double platinum. The differences have to do with longevity, overall performance, and the cost spent for each. Let’s look at the pros and cons of the top plug types to determine what might suit your car the best. 1. Copper Spark Plugs.
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Dec 3, 2023 · The ignition system’s spark plug ignites the air-fuel mixture, hence the name “ignition”. For the ignition system to operate properly, it must be able to accomplish two tasks effectively and accurately at the same time. Create A Strong, Hot Enough Spark. The first task is to create a strong spark that can jump across the spark plug’s gap.
