The figure demonstrates the vacuum clutch mechanism. This type of clutch uses the existing vacuum while in the engine manifold to function the clutch. The vacuum clutch consists of a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  Always place the flat side of the clutch plate against https://clutchkereta79170.bloguetechno.com/clutch-kereta-no-further-a-mystery-68164953