Ignition Distributor

Choosing An Ignition Distributor

An ignition distributor is selected for the engine and ignition system it is designed to serve. Compare the application, cylinder configuration, drive and electrical connections. A-Premium offers distributors for selected vehicles with different pickup and electronic-control arrangements.

Package contents also differ. Some listed assemblies include a cap and rotor, and some specify an electronic module; those details should be checked for the individual part.

How An Engine Distributor Directs Spark

In a distributor ignition system, the coil generates high voltage and the distributor directs it through the cap and rotor to the appropriate spark plug in the engine's firing sequence. The triggering and timing controls depend on the ignition design.

A distributor cap and rotor are service components of the system; they are not the same as the complete distributor. Engines with distributorless ignition use a different arrangement and may not have this part.

Distributor Replacement And Ignition Timing

The distributor's orientation and drive engagement matter during removal and installation. Use the vehicle's service procedure to preserve the correct relationship to the engine and to check ignition timing where the system requires adjustment.

Misfiring or a no-start condition can also involve spark plugs, wires, a coil or other controls. Diagnose the ignition system before assuming the complete distributor is the failed component.

Frequently Asked Questions (FAQ)