overvolts on G model

[sunnysky]

Just to let all out there know , I have resolved my overvolts issue.
The rear alternator was faulty . We found chaffed wires in it.
So , replaced it with a new Plane Power alternator at great expense ( we are in Europe)
Also replaced the diode on circuit board that sits on bulkhead in front engine compartment ,
In fact we replaced both front and rear diodes .(only cheap, even here)
System now works normally.
Hope this may be useful to others out there.