Featured Articles

Valve Springs Bad, Desmodromic Valves Good

Posted in Bizarre, Cool Stuff, Ducati, Engines, FAIL, Grand Prix, Mechanics, Videos by Kurt Ernst | May 16th, 2010 | Leave a Reply |

This 1981 video is chock full of gear head goodness: a Cosworth engineer explains the problems of high speed valve operation, then shows what happens to a Cosworth DFV motor when an intake valve spring breaks, Good stuff, and a great example of why we change timing belts punctually on interference type motors.

I love his pitch for desmodromic valve actuation at the end of the video, accompanied by some all-internal Ducati motor porn.

Found on Bangshift

Our Best Articles

Leave a Reply

Your email address will not be published. Required fields are marked *