We had a discussion about this a couple weeks or maybe a month or so ago and I posted some pics of a Campagnolo spindle and caged bearing:



Here it is with the exposed balls facing out (towards the cup) and the caged part against the cone. This is the wrong way around for this BB -- you can see that the balls are prevented from contacting the cone:



Now, here it is the other way around (correct way for this BB, but not for every BB):



This particular spindle and caged bearing are early 70s Campagnolo GS. I recently did a mid 80s Bianchi with a Campagnolo Triomphe crank (and I assume BB) and that was the same. An early to mid 80s Super Record is the same, too. That is the sum total of my experience with Campy BBs so I can't say for sure that there are not some that fit with the cage the other way and as I have recently seen, and others can attest, there are a lot of BBs out there which need the cage facing the other way (with the exposed balls into the cup).

Of course, having the bearings facing the wrong way might not be your problem, but as long as you're going to take it apart again anyway, you might double check just to be on the safe side.