Wednesday, June 27, 2012
Ducati makes high performance motorcycles. They are to bikes like Ferrari is to cars. They do things no one else would dream of doing, like using a whole bunch of bevel gears to drive the valves in their engine (picture). Note that the pair of gears in the center are your normal 45 degree bevel, but the angle of the three gears around the upper and right sides are more like half that, and helical cut to boot. Not something you are going to make in your high school shop class, if your high school had a shop class.
Hat tip to Stu, who posted a story about Tornax motorcycles, which switched from English JAP engines to German ILO engines after the Nazi's came to power. JAP I had heard of, but not ILO, so I had to go look it up, whereupon I stumbled across an ad for Phil Aynseley Photography, which led to this photo of the timing gears of a 1973 Ducati 750 Sport.