Hi Hannes,

Yours is like mine although the boss with a hole has been cut off.
Does it rest against a cable tie to stop it falling down and is there anything to stop it rotating (mine didn't)?

And, are you saying if you hold the ring in place and insert the key it still doesn't work?

Regards

Geof
70th Anniversary 4/4 (Duratec 1.8), model 1995