While you're doing that go to www.edsonmarine.com and download their steering system manual. Then read it, then print it out, then print it out again and take one of the copies with you to the boat.
In addition to the encouragement you have and will continue to receive here, YOUNEED to learn about how it is supposed to work, regardless of what the PO and/or your idiot mechanics did. If you don't, all you're doing is extending your "excuse" time!!! You must learn how it is supposed to work, first, and then inspect what you have and find out what needs to be fixed. YOU, not all of us. We can try to help, but YOU have to make the decisions.
There are additional C30 sources of info, too:
Catalina 30 Groups Link
Subscribe at the web forum:
Catalina30 groups.io Group
*All things Catalina 30 and 309! Sponsored by the International Catalina 30 Assn IC30A. FAQs, Q&A, comments, and experiences especially fixes and modifications invited. Share with over 2200 other owners. Website catalina30.com* *Please join the International Catalina 30 Association.
A C30 has a radial rather than a quadrant. With a quadrant (in front of the post) the right hand cable attaches to the right side of the quadrant.
With a radial, the right hand cable crosses over to the left side of the radial. Mechanic screwed up.