The solidified grease put up a serious fight. The tuning gang, complete with FM tuner head had to be removed and the 100W iron applied to get it to move but in the end the shaft complete with its bush had to be twisted out of the gang body to allow the shaft to be drifted out of the bush and the old grease scraped off.
Refitting the tuner head assembly enabled the radio side to be checked- it worked fine, but when restringing the pointer drive it became clear that the relative positions of the shaft and its gear and the tuning gang itself were critical to the pointer drive since the cord drum was keyed to the D of the shaft. A further stripdown and reassembly in the correct alignment was required.
The record playing side threw up a final issue- the stylus tip was bent
Luckily this responded to some careful tweaking under the magnifier with fine nosed pliers and the whole system now worked OK.
HiFi it ain't, 2Wpc and 8x5 elliptical speakers in open enclosures at each end give a noticeably "boxy" tone but it's probably as good as it ever was.