I've got a few 216's stashed away, one that I know is a 1950, also a 1953, and another that's a 46. I'll see if I can take some pics and email them to you tomorrow. The engines with the drain back to the crankcase will gravity-flow to the orfice hole when stopped, not sure about the others!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!