EllisoJo

Yesterday I removed the O/S front wheel and arch liner to inspect the top link. Pleased to find:
1 all looks clean and link looks newish.  
2 grease evident on nipple and at front end.
3 no movement detected, but difficult to apply force as there is no convenient fulcrum to lever against.
I also learned what many others mean about a mud trap at rear of liner.  I think I have a solution involving sticky back transparent plastic, as used for covering books. I will try this when back at home. Visiting father in law at present.

Regards to all and special thanks to those who explained how to remove liner without damage.