The determine exhibits the vacuum clutch system. This kind of clutch works by using the prevailing vacuum in the engine manifold to operate the clutch. The vacuum clutch is made up of a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  To understand how a clutch will work, https://lukasnyhns.thenerdsblog.com/38768273/how-much-you-need-to-expect-you-ll-pay-for-a-good-clutch-kereta