I was sincere in my answer.
I have at least 6 Ithaca Flues models with varying levels of cocking system binding due to recoil.
You can chase thousandths of an inch, and waste many hours refitting the cocking system on a $200.00 Ithaca Flues field grade.
If the OP posted a serial number even, he could have all the help he needs. There's an old thread here with pictures and a cutaway drawing that shows how the Flues cocking system works, and which pieces typically wear/break, courtesy of a deceased member named Jim I think.
Last edited by ClapperZapper; 08/22/15 08:50 PM.