This is the latest vacuum engine made that had a few hiccups but worked well. Its a piston design, crank powered cam shaft, pushrod, rocker arm, overhead valve, and rubber band for valve returning function.
Really awesome sound and hope you enjoy it.
Son asks for help on this one with comments on how to make it rev higher and also how to seat valve more efficiently.
Негізгі бет New Lego OHV Piston Vacuum Engine
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