Knocking (in a petrol engine)

From International Dictionary of Marine Aids to Navigation
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6-2-215

Alternative term: Detonation

The spontaneous combustion of part of the fuel-air mixture in the combustion-chamber. This effect produces a knocking noise.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM