[Johnvon the Dick]

[ame="http://www.youtube.com/watch?v=_REQ1PUM0rY&feature=related"]YouTube - Valve Float[/ame]
inside a 4 stroke
[ame="http://www.youtube.com/watch?v=sEf8va1S7Sw&feature=related"]YouTube - In Cylinder Video ( How a 4 stroke engine works )[/ame]
no valve springs
[ame="http://www.youtube.com/watch?v=GXIdOTkJhEY&feature=related"]YouTube - Springless Valvetrain For Push Rod Engines![/ame]

 

[BadNews]

That's an old as hell vid, but still good for people to see, I've seen a Spintron in action at my brothers shop in Mooresville NC., you can't believe how loud the valvetrain is when spinning at 9600 rpm, it sounds almost like a running engine!

 

[Johnvon the Dick]

shit post up other informational video's, its one thing to be told about something but then to see it really helps people understand,