It consisted of replacing the points, condenser and spark plugs. For high-mileage drivers and performance enthusiasts this ignition system maintenance was often needed more than once a year.

The contact-points ignition system has been used on the internal combustion engine since the early 1900s because it is simple and durable. Compared to the computer-controlled ignitions used in ...

DWELL ANGLE: While there is dwell in an electronic ignition system, it is most easily expressed as the amount of time that the points are dosed between sparks.