Gnome 9 B2
Engine Front View Animation
Gnome Cam Gears Animations
Engine Animation Engine Animations Engine Animation

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Gnome Cam Gears Animations
Clerget Assembly Movie Clerget Assembly Movie

Clerget Assembly Movie

Gnome 100 hp Engine - Spinning Gears

The exhaust timing is based on the 9 Cam gears, one cam per cylinder, mounted onto the Cam Shaft in the Valve Gear Case (Cam box). The cam shaft gear is driven by two planet gears which are mounted onto the front cover of the Valve Gear case (Phantom, the Cam box removed for visibility).

These planet gears drive the cam shaft, causing it to rotate at half the engine speed, thus providing the correct timing for a 4 stroke 9 cylinder engine.