RE: worst engine ever
There are a lot of folks spreading bad information out there, RCPAUL. I hope you haven't fallen victim to one of those folks. Fox wasn't the only one to use that spiral groove oil pump idea. It worked too. Problem was when they ran it under the intake tract, but even then, it was only an inconvenience.
Ed Cregger
Sorry Ed, but your off base here. The grove is not spiral, is in the crankcase, and runs straight from the venturi to the front bearing. It lets intermittant air in and, until filled, the engine just would not run at any speed well. After filling, it was a good engine.
Paul