Back in the 1960's and for a couple of decades before, Perfect Circle piston ring company used to offer a 2-week course for journeyman mechanics and instructors at their training facility called the "Doctor of Motors" program. I was a student there the summer after graduating high school, before beginning engineering school. One of the training tools was a 216 engine on a run stand with quartz windows in the cylinders that allowed students to observe the movement of the pistons, the color of the combustion flame during mixture changes, etc. With a strobe timing light it was possible to slow down the motion to the point that the movement of the piston rings could be observed. It took approximately 10 seconds for a piston ring to make a complete turn around the piston at 2500 RPM- - - -I've watched it happen.
How's life in the garden these days?
Jerry
