This valve float can result in the valve not closing quickly and it may strike the top of the rising piston.
Spring pressures on the intake and exhaust valves have been increased to avoid valve float.
Unlike the VW boxer, it could be taken to near 6000rpm without any valve float.
Advances in valve technology similarly reduce valve float at such speeds.
The Ducati desmos head enables higher rpm to be achieved without detrimental valve float.
Pushing the z200 to very high rpms exposes it to risks of "valve float".
The main benefit of the desmodromic system is the prevention of valve float at high rpm.
In sprung-valve engines the traditional remedy for valve float is to stiffen the springs.
This is beneficial at higher engine speeds because of a reduction in the aforementioned valve float.
However, at high operating speeds the valves do not completely close before the cam opens them again, a problem called "valve float".