A little device sitting in the middle of the cylinder head, which generates an electric spark when the piston has reached the top point, and the air - fuel mixture is compressed The spark will ignite the air - fuel mixture which will rapidly burn off This in turn will drive the piston down again Spark plugs are relatively cheap and should be checked often and replaced if necessary, typically every 4 to 5 races A special spark plug tool is used to remove the plug The temperature sensor is located around the base of the plug The sensor to measure the RPM is attached to the spark plug cable The spark plug cable is attached to the plug via the sending unit The size of the gap at the bottom of the plug varies depending on the kind of spark plug and should be the gap specified by the engine manufacturer
In internal-combustion engines with electric ignition, a plug, screwed into the cylinder head, having through it an insulated wire which is connected with the induction coil or magneto circuit on the outside, and forms, with another terminal on the base of the plug, a spark gap inside the cylinder
A device inserted into the combustion chamber of an engine that provides the gap across which the high tension voltage jumps, creating a spark that ignites the compressed fuel-air mixture
(Otomotiv) A device that delivers the electrical spark to the combustion chamber. This ignites the fuel/air mixture and produces the power that drives the engine
A spark plug is a device in the engine of a motor vehicle, which produces electric sparks to make the petrol burn. a part in a car engine that produces an electric spark to make the petrol mixture start burning. Device that fits into the cylinder head of an internal-combustion engine and carries two electrodes separated by an air gap, across which current from a high-tension ignition system discharges, creating a spark and igniting the fuel. The electrodes and the insulator separating them must withstand high temperatures, as well as an electric stress of up to several thousand volts. Spark-gap length affects the energy of the spark, and the shape of the insulator affects the temperature of operation
A component in the ignition system that ignites the fuel inside the combustion chamber The spark plug is nothing more than a pair of electrodes with a gap in between When high voltage from the ignition system reaches the gap, an electrical arc jumps across it and ignites the fuel The distance across this gap is critical because if it's too wide, there may not be enough voltage to push the spark across The center electrode gradually wears away as the spark plug accumulates miles, and deposits build up around the insulated tip that can short circuit the firing voltage That's why spark plugs require periodic replacement With unleaded fuel, average plug life should be around 30,000 miles
(Otomotiv) The space between the center and side spark plug electrodes, across which the spark must jump to ignite the fuel/air mixture in the combustion chamber. Adjusting this gap is a major part of the basic tune-up, because the width of the gap affects the intensity of the spark
(Otomotiv) A metal cylinder with a rubber lining that fits over the exposed end of the spark plug to make it easy to remove the plug without damaging its porcelain surface. Can be purchased separately or as part of a socket wrench set