valve train
Cylinder head mechanism
The valve train is the system of components in an internal combustion engine that controls the opening and closing of intake and exhaust valves.
It typically includes the camshaft, pushrods, rocker arms, lifters, and the valves themselves.
The design affects engine performance, efficiency, and the characteristic sound: The mechanic diagnosed a worn valve train by the ticking noise.
- pushrodEngine valve linkage component
- tappetCam-actuated engine lever
- rockerChair on curved rails
- camshaftLobed rod operating valves
- liftersThose who raise things
piston · cylinder head · head gasket · lobes · timing belt · reciprocating motion · engine · cam · four-stroke · redline · rev limiter · timing chain · mechanical · feeler gauge · clearance · horsepower · intake · muscle car
valve traincrankshaft
Rotating engine shaft
fuel system · ignition system · connecting rods · power train · cooling system
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