Moped Army

So I've looked everywhere on this site to find out how this is done. The Moped Wiki page only goes as far as taking apart the clutch side of the Puch ZA50. Even the Puch shop manual makes it seem as though the case halves just fall apart after removing all the case screws and drive gear circlips. This is not the case for me. Do I have to pound out the drive shaft on the transmission side? I've heated up the case with my torch on the seam of the case halves and still it won't budge. At the risk of sounding like a noob there must be a post or video of this being done somewhere?

Any help is much appreciated. Thnx!

-Mustachio