I just adjusted my rudders on my 14 over the weekend. Quick job. I took the rudders off the boat (for leverage on loosening up the adjuster bolt), sprayed wd40 on the bolt and used a drill with a flat head bit. Do not loosen the bolt all the way. I did that. Didn't know there was a nut inside the crossbar (was easy to put back together in case you go to far). Just loosen it up until the arm moves freely in and out of the crossbar. Popped the rudders back on the boat, measured for slight toe in and then tightened the bolt back up (used drill again to get tight). It took me longer to take the rudders off and put back on then it did to adjust them. Just my recent experience.