Assertion: valve's design | /r/HasAspect | the camshaft
Facets:
value: on top of the cylinder head
type: LOCATION
Source sentences:
text: More modern designs have the camshaft on top of the cylinder head, pushing directly on the valve stem (again through cam followers, also known as tappets), a system known as overhead camshaft; if there is just one camshaft, this is a single overhead cam or SOHC engine.