I just stripped down and rebuilt my Lama V3 tonight - it's basically a V4 in an Alouette Lama body, as you probably know..
When replacing the main gear on the bottom of the 4mm shaft there's a small brass washer that sits either above or below the 4x8x3mm bearing.
(The washer isn't even listed in the exploded diagram that came with the instructions.
This washer has a ridge on its inside circumference - should that be up or down ?
And I assume the washer goes between the bearing and the main gear wheel right ?