Radial engine timing and cam mechanism. Note the 1-3-5-2-4 firing order and how the upper piston has a master rod with a direct attachment to the crankshaft, while the other pistons pin
Radial Engine
Radial engine - Wikipedia
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Bristol Mercury revisited
Aircraft engines. - Page 35 - UNT Digital Library
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ROTARY ENGINES: HOLD THE CRANK, SPIN THE REST | Simanaitis Says
Where is the camshaft in a radial engine? I've seen radial engines that have cam followers engaging a cam on the crank, but that would open the valves on every rotation -
Fairchild Caminez 447 Radial Cam Engine | Old Machine Press
correct valve/ cylinder timing!!!!! - YouTube
Marchetti Cam-Action Engines | Old Machine Press
7-cylinder radial engine built from air-cooled VW parts - The Technical Forum - The Autosport Forums