Meaning & use
Tappet
Last updated
A short lever or projecting part in a machine, especially in an engine's valve mechanism, that transmits motion by contact with another moving part.
See it in a sentence
A worn tappet can cause a distinctive ticking sound in the engine.
The mechanic adjusted the tappets to fix the valve clearance.
A note on using this word
Common in discussions of internal combustion engines, where tappets convert the camshaft's rotating motion into the linear motion needed to open valves.
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