Yesterday, i peeked into the bottom bracket and not much grease on the stoker; was able to grease the stoker bearings. Thankfully this probably was more of a wall hanger tandem and the spindle looked ok. The bearings are built into the cups, so parts are probably non existant?
Could not take the front bottom bracket apart completely, so the eccentric is still unknown. The tools needed to disassemble the thing look unusual; i will need some giant wrenches i think. My local LBS does not want to touch the thing.