We remember (or mark) the position of the contact plate of the rotor.
Remove the hose from the union of the vacuum ignition timing regulator.
key «at 13» unscrew the nut and remove the lock plate.
We take out the ignition distributor from the cylinder block,...
… without losing the gasket.
key «on 7» unscrew the nut, remove the low voltage wire end from the output and connect it to the output of the new regulator.
We install the distributor in the cylinder block and adjust the ignition timing (see Ignition timing adjustment).