The figure displays the vacuum clutch mechanism. This kind of clutch utilizes the existing vacuum in the motor manifold to work the clutch. The vacuum clutch contains a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  When the clutch is engaged (clutch pedal up) the motor and gearbox https://gunnerwwvvu.ageeksblog.com/31999067/details-fiction-and-clutch-kereta