quote:Originally posted by ZR1 Pantera:
... unless there was a pin that kept them in a certain location like on some motorcycle pistons...
Two stroke motors have a pin to keep the ring from rotating, and to align the ring's end gap at a specific spot on the cylinder wall ... a spot where there are no ports!
You can imagine what would happen if the ends of a ring were to align with a port in the cylinder wall ...
-G