Just start looking here: Combi Overhaul.
it´s a "Combi Overhaul
Manual" for the Vega.
At the same page you will find manuals
and spare part lists for Penta
MD 6 / MD 7, and some other old Swedish engines, if interested.
Within a few days I have some pictures from my own Vega, just pulled it all today, engine-gear-shaft, I´m going electric
I will upload pic. with comments for adjustments and descriptions at this page:Volvo Penta
Entire website is in Danish, so Google
is your friend.