The figure exhibits the vacuum clutch mechanism. This type of clutch uses the prevailing vacuum while in the engine manifold to operate the clutch. The vacuum clutch is made of a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  wikiHow is in which trusted investigate and pro information https://clutchkereta10852.gynoblog.com/32255360/detailed-notes-on-clutch-kereta