Thanks Derek, I’ll do some more diggingThere should be an oil seal of 20 x 26 x 4mm in the casing but if the bush is worn that might need replacing as well.
I'm sure one or two who are very hands will pop up soon with a possible suggestion, for now, welcome. This might help too
Thanks Derek, yes ordered the O ring, the bush is on back order,From the parts list. 260 is the bush and 265 is the oil seal. If the bush needs replacing the cases will need to be split.
View attachment 126127
View attachment 126128