Abstract: An electromechanical engine timing device for installation in an ignition system distributor having one or more breaker points which provides a visual indication of maladjustments and malfunctions, permitting easy detection and correction. The system is comprised of light-emitting diodes permanently mounted within the distributor, connected in parallel with each set of breaker points to visually indicate the correct static setting of the breaker point. The light-emitting diodes are mounted on a semi-circular bracket for permanent attachment to the adjustable base plate in the ignition system distributor. The light-emitting diodes can be viewed through a transparent cover on the distributor providing a continuous indication of the proper sequencing of each breaker point by a rotating cam.