Well here's the results of investigation....
How this came about can only be 1 of 2 options, either of which is unbelievable/ridiculous...
I'm no Welder, but I can't see anyone making such a perfect job of welding the slot over, so the only other option is some remarkable duff Cross member that was made with holes instead of slots....
The Tension Bar adjuster bolt is screwed into a nut that is welded to the Cross Member...

- 20190815_190834.jpg (497.12 KiB) Viewed 4871 times
I was able to remove the Lock Nut on the rear and remove the underseal; there's a neat hole and to my untrained eye, no sign of the slot having been welded to fill it.... those scratch marks are just where I scrapped the underlying paint off.....

- 20190815_185809.jpg (1.08 MiB) Viewed 4871 times
I throw this problem open to my fellow Minor Owners... Ideas to rectify please.
I'm thinking get all the required bits, disassemble as though I were fiddling with the adjusting lever, grind off the welded on nut and drill/grind a slot to the right dimensions....
Sound easy when you write it like that...
