The use of an ignition coil from a contact ignition system in a contactless ignition system is not allowed. The switch (electronic module) Bosch or AC Delko (Lucas) is structurally combined with the ignition distributor.
When the distributor rotor rotates, the control rotor rotates with it and the distance between the control rotor and the magnetic coil constantly changes, as a result of which an alternating voltage is induced in the coil, in accordance with which the commutator generates pulses for controlling the commutator. Sparking occurs when the pole of the control rotor is opposite the coil. The angle of the closed state is determined by the commutator and changes depending on the rotation frequency.
Safety rules
To avoid electric shock, do not touch high-voltage wires while the engine is running.
It is strictly forbidden to connect a test lamp or capacitor to terminal 1 of the ignition coil.
All connections of measuring instruments must be made only with the ignition off.
When checking compression, remove the central wire from the ignition distributor and connect it to an additional spark plug, secured by the housing to ground.
Carry out electric welding work with the ignition off and the battery disconnected.