Thanks everyone
Will try these and report back so others may benefit. Talk about frustratingly weird!
While I am posting here is another. Have been completing the prop shaft connection to the back axle and midway bearing support, and had to replace the cups on the pinions/splicers i think you call them. Had some new ones and after cleaning the pinion/splicer stub ends, tapped the caps gently onto the ends. A tight fit. When i encouraged the caps, all of them the same, to rotate, they seemed to unscrew one way and then lock, then screw tiģht the other and then lock. How? They are push on. As they unscrewed they left the rod bearings on the stub ends.
Prop shaft now fitted and hoping all is well once i get a water pump conditioned and dynamo bearings sorted.
Oh the fun of lying on a cold dusty concrete floor as the wind and rain rattle the corrugated sheets on my Nissen hut.