Thanks Musky. I think this helps me work out what amount of under sized bearing I need to be chasing. Not sure if that makes sense but I am guessing the inside "bore" of the bush needs to be undersized from standard. my Journal us 1.360" and i understand needs 1 thou clearance.
Thanks KiwiGF. this is also where I find the forum helpful. I get bogged down on a detail and someone else's idea starts another thought process for me. I understood your thinking, but I had no idea what a standard size the OD of the bush would have been. My casing has already been line bored to take out the oval and another blemish. However I have no idea what the standard OD size was. Once I read your post I went down to the shed, found 2 other casings and am now using the smallest size of those (thus bypassing any oval aspect in those casings) as the original OD. 1.6775"
Now if i can find an off the shelf bearing of relative size... they seem to go for +20, - +80 and so on... i can try and supply our good friend Orabanda with a close fit that he can tweak in his shed. And so the fun will continue.
Many thanks.