In article ,
wrote:

Does anyone know of a one-day course on non-fuel-injected piston
aircraft engines? Sort of an Engines 101? Six-cylinder preferred;
Continental 0-300 ideal. Advanced Pilots Seminars has an extensive
course on piston engines but it's far more advanced than I need. I'd
like someone to walk me through the basics of my engine from a
seasoned rebuilder's perspective. I'd like a first-hand view of what
happens to various engine components as it relates to engine
management. I'd like to see (real metal; not a video or book) what
might result from running too lean, too rich, too hard, too seldom,
too low on oil, or with too much oil. Stuck valves, improper
break-ins, broken rings, bad bearings, improper timing, etc. All with
the idea of being able to use the information to better operate my
engine. Any ideas?

Everything you expect to learn in one day, you will quickly forget.
You are asking for the Cliff's Notes version of a lifetime of
experience.
Go to the AvWeb site and download John Deakin's columns on engine
operation. Take your time to read and re-read them. Most of the answers
to your questions are to be found in his writings.