Done some lurking around - and from the various photos I've trawled through of 14 inch Model 45s, seems you've got it right B S. All of them are showing the counterweighted half on the non transmission/engine side. So surely it's unlikely the majority are set up incorrectly...

I've got an old 14" roller and chassis at home stashed away in the shed. All the photos I've got of it on my phone aren't exposing the bolts on the side of the roller, so I will check the orientation of it tonight and report back too.

If it is indeed the case, looks like I'll be pulling my own 14 apart for some minor surgery! That being said, I've gotten away with it installed incorrectly for a good six months as it's shown no signs of off balance in the cut results. But it's best done right.

BTW that's a real popping colour you've used on the chassis there B S, what paint did you go with?