[SSedan64]

Great old video from the 30's easy to understand in plain English. Ran across it on the TB.com forum. It may not start at the beginning just click to the left.
http://www.youtube.com/watch?v=K4JhruinbWc#t=1m50s&feature=related

 

[johnnya]

I wish I'd seen that 50 years ago. I had to tear into an old Model A rear end to see the gears and figure out how they worked.
The visible V8 model I got for Christmes at about age 12 made me understand how the valvetrain worked. :mwink:
JA