On engines there are no adjusting labels on a flywheel or a pulley of a cranked shaft. Installation of a corner of an advancing of ignition constantly is supervised and changes the block of engine management ECU.
Without special equipment it is impossible to check up installation of a corner of an advancing of ignition.
QX4.ONLINE S40.ONLINE A-8.ONLINE W124.ONLINE RX300.ONLINE W140.ONLINE B3-B4.SPACE B3B4.SPACE A-8.SPACE