You're cracking me up!

 Goblins, elfs, evil little buggers, I don't know, but somehow when it prepared to continue wotking on the engine I npoticed a huge crack in the casing.

dammit dammit dammit...

So I had it welded by someone who know how to weld aluminum, result:

Now of we go, new shift cross installed AFTER we installed the axel and one side of the casing is done!

But wait, there is more, as someone thankfully pointed out to me, we forgot to put to bolts in place before you put in the primary insert facepalm emoji.

So out with the drive train axel, out with the primary and in go two annoying bolts. Next up placing the crankshaft, also Pinasco. We already place new oil seals and a new bearingnow it was just a matter of putting the it in the right way around (clutch but goes on the left, ignition bit goes on the right).

Notice the bolt that are now in place :)

Starting the tune up: shift cross

The primary gear has beem sorted so now it’s just a matter of putting all the ready made pieces in place, should be easy right! Yeah you guessed it: wrong…

First thing we did was build up the Christmas tree, so basically putting all the gears on the primary shaft, replacing the shift cross and assemble. That went ok, had a little trouble with locking washer but sorted that out also. Replaced the bearings and seals ready to receive the primary axel.

Lesson one, do not hammer the axel in place with the shift cross installed!

The axel needs quite some persuasion so while hitting it with an hammer, as one done on a piece of precision engineering, all the force was trnasferred directly onto the shiftcross, causing it to nicely snap off all four legs...