@meca_systema: When the spark plug ignites the mixture and a sharp pressure spike occurs after that, it is auto-ignition. That's what you hear. With pre-ignition, the ignition of the charge happens far ahead of the spark plug firing, Fuel should burn in even waves that are timed to the engine's cycles, carrying through until the next cycle causes the next wave. When fuel is improperly ignited, it causes a fireball-like explosion that can interfere with the engine's cycles and can even damage engine components -- these premature detonations are the source of the "ping" noise. The definition of pre-ignition is the ignition of the fuel/air charge prior to the spark plug firing. Pre-ignition caused by some other ignition source such as an overheated spark plug tip, carbon deposits in the combustion chamber and, rarely, a burned exhaust valve; all act as a glow plug to ignite the charge. #engine #4stroke #detonation #preignition #autoignition #ignition #knocking #combustion #powerstroke #mechanical #piston #valve #spark #ignite #engines #misfire #automobileengineering #systema #rave #mecanica #tiktok #foryou #механик #ميكانيك

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Sunday 15 October 2023 13:15:11 GMT