IGNITION DISTRIBUTORS FOR INTERNAL COMBUSTION ENGINES

IGNITION DISTRIBUTORS FOR INTERNAL COMBUSTION ENGINES A breakerless distributor for an internal combustion engine comprises a base, a shaft adapted to be driven by an engine and extending within the base, a rotary member rotatable by the shaft, an electronic means cooperating with the rotary member to produce timing pulses. According to one feature of the invention, the electronic means is in the form of a transmitter and sensor unit removably secured in an aperture in the base, the aperture being so positioned and dimensioned that the unit can be removed from the base without removal of the shaft or rotary member from the base. According to a further feature, centrifugal means in the form of a pair of weights is interposed between the shaft and the rotary member to advance the rotary member relative to the shaft as the shaft speed increases. Each weight is eccentrically mounted on a respective pivot on top of the rotary member, and a rotor assembly having a central input terminal and spaced peripheral output terminals is secured to rotate with the rotary member by means of a pair of screws each received in a screw threaded bore of a respective pivot thus providing a construction which is simple and cheap to manufacture and easily accessible for servicing.