Checking and replacing brushes and a voltage regulator on cars with an engine of the ZMZ-405, ZMZ-406 type

On engines of the ZMZ-406 and ZMZ-405 families, generators 9422.3701 or 5122.3771 with built-in integrated voltage regulators are installed.

You will need: a hex wrench “6”, heads “12”, “13”, “14”, a small chisel, a hammer

The electronic unit, processing the data received from the sensors of the system, controls the operation of two ignition coils, applying low voltage pulses to them

Loosen bolt 1 two to three turns

Unscrew the adjusting bolt 2, loosen the belt tension and remove it

The ignition distributor with a built-in Hall sensor produces voltage pulses, which the switch converts into current pulses in the primary winding of the ignition coil

We remove the tips of the spark plugs together with the high-voltage wires, the ignition coils (you can only disconnect the connectors by leaving them on the valve cover), the throttle cable and, having disconnected the wires from the sensors of the lubrication and cooling systems, remove the wiring harness from the brackets of the head cover .