Helm Assembly has broken tooth
The capability to turn only one way and going back to turn the other way produces a clicking noise is probably a broken tooth on the Helm Assembly. I do agree that the cable can be tight, but it appears that you are beyond that because nothing in the cable will make a clicking noise. I would lubricated the cable at the helm as well as the back components to ensure that everything is moving smoothly. This will help when you put the new Helm in. I did it last year on my 1999 - not too complicated. Took about an hour. My part number was 20439003. Good luck.