Let's look at how to replace the voltage regulator and rectifier unit

To compensate for the thermal expansion of the valve, the gap between the end of the valve stem and the adjusting bolt screwed into one of the arms of the rocker arm of the valve actuator is structurally set

If you need to repair the cylinder head of the engine installed on the car, remove it ("Replacing the cylinder head gasket")

Remove the fuel rail for flushing and replacing injectors