Assertion: engine's piston | /r/CapableOf | start moving in the intake stroke
Facets:
value: downward
type: MANNER
Source sentences:
text: We would want to grind the camshaft so that, just as the piston starts moving downward in the intake stroke, the intake valve would open.
text: Therefore, at higher rpm ranges you want the intake valve to open prior to the intake stroke -- actually back in the exhaust stroke -- so that by the time the piston starts moving downward in the intake stroke, the valve is open and air moves freely into the cylinder during the entire intake stroke.