The ignition cam is the mechanical heart of every classic contact breaker ignition. It controls the precise opening and closing of the ignition contacts and is therefore largely responsible for the ignition timing and clean engine running.

Since contact ignition is a mechanical system, the ignition cam is subject to natural wear. A worn running surface or a worn groove for the half-moon key will inevitably lead to problems: The result is rough engine running, starting difficulties or misfiring.

To avoid a complete breakdown, this component should be checked carefully when overhauling the ignition and, if in doubt, replaced with this high-quality new part in OEM quality.