HITACHI Single Breaker Point Distributors: Description

Hitachi single breaker distributors are equipped with centrifugal advance and vacuum advance/retard units. Breaker plate assembly consists of a fixed lower plate, with breaker points mounted on movable upper plate. Centrifugal advance is conventional type with weights and springs. Vacuum advance (or retard) is controlled by a vacuum diaphragm unit mounted on distributor housing and linked to movable portion of breaker plate assembly.