the nearby #CylinderWall it will sweep back over & ignite any unburnt A/F that the #FlameFront hasn't reached & will continue this game of #RadicalTag w unburnt A/F until it's all 🔥 or #ExhaustValve opens.
📖 #SAEinternational #Knock: A Century of Research
03-15-01-0004
#KnockKnock
Who's there?
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