the world > action or operation > manner of action > [adjective] > specific modes of action or operation > faulty > of a mechanism (3)
out of whack: disordered, malfunctioning; out of order or alignment. Cf. wacky, adj. Chiefly U.S. Of a mechanism.
Australian. Disordered; out of order. rare.
Suspect, questionable. Also: unreliable, not working properly.