Check this out..
Engines
Stuka Stunt Main Forum · 7 of 7 known posts recovered
Ok that's to COOL!!!!
Metrolina Control Line Society
LAST EDITED ON Nov-08-03 AT 01:03 AM (CST)
Yeah, isn't it?
Yeah, isn't it?

LOVE IT....
Scott(what can I say?)Riese
Scott Riese
>Yeah, isn't it?
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I see something pushing the top valve, but I keep wondering how that bottom valve is opening.
Leonard Neumann
The intake valve is a poppet type valve with a weak spring. It is opened by cylinder vacuum on the intake stroke. Many of the old " hit and miss " stationary engines operated this way.
Don Jones
Cool site.
Chris
Chris