tappets
Cam-driven engine parts
Tappets are mechanical components in an engine that transfer motion from the camshaft to the valves.
They rise and fall as the cam rotates, pushing the valves open at precise moments.
The term appears most often in discussions of valve adjustment: The tappets need adjusting—you can hear them clicking.
Also called valve lifters.
Lobed rod operating valves
- lifterOne who raises things
- pushrodEngine valve linkage component
- rocker armPivoting engine lever
- overheadLocated directly above
valve · lobe · follower · hydraulic · mechanical · solid · roller · flat
Permitted passage or approval
- gapUnfilled space between
- shimThin piece for leveling
- feeler gaugeTool measuring small gaps
- specificationDetailed technical requirement
tolerance · cold · hot · setting · calibration · torque · locknut · wrench
Parasitic eight-legged pest
metallic · chatter · quiet · loud · idle · rhythmic · diagnosis · stethoscope
Relating to pressurized liquids
- solidFirm matter state
- wornDamaged by use
- pittingForming small cavities
- scoringEarning points in competition
mushrooming · replacement · hardened · lubrication · oil · maintenance · mileage · failure
Straight-tipped tool or fish
- DOHCDual overhead camshaft
- vintageQuality from past eras
- classicOf lasting excellence
- motorcyclePowered two-wheeler
camshaft
Lobed rod operating valves
- lifterOne who raises things
- pushrodEngine valve linkage component
- rocker armPivoting engine lever
overhead · valve · lobe · follower · hydraulic · mechanical · solid · roller · flat · bucket
clearance
Permitted passage or approval
- gapUnfilled space between
- shimThin piece for leveling
- feeler gaugeTool measuring small gaps
specification · tolerance · cold · hot · setting · calibration · torque · locknut · wrench · service
tick
Parasitic eight-legged pest
knock · metallic · chatter · quiet · loud · idle · rhythmic · diagnosis · stethoscope · listening
hydraulic
Relating to pressurized liquids
scoring · mushrooming · replacement · hardened · lubrication · oil · maintenance · mileage · failure · inspection
flathead
Straight-tipped tool or fish
motorcycle · diesel · industrial · air-cooled
- tapped outExhausted of funds
- double tappedStruck with consecutive hits
- wire tappedUnder secret surveillance