Valve Float ·
When an Engine Spins Too Fast for Its Springs
un
seel
.com · the cam revs up until the spring can no longer close the valve in time
Engine
1200 rpm
Valve
SEATED
Phase
IDLE
Spring closes valve — follower on cam
Follower lifts off — valve floats free
Valve bounces off its seat
Engine speed / red line
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Un
seel
.com · Valve Float