Attachment 18943
Eurocarparts, or if you are near LIDL, they have something similar there unless they have run out.
https://www.hotukdeals.com/deals/lub...werfix-2931700
I might just try lubing it again through the gap. There is something called a friction finger in the centre on the horizontal plane and about 2/3-3/4 from the inside edge on the vertical plane. I will make sure this gets plenty as it sounds like something that could jam.