I am doing a part-time LLB through the open university, london college of law. Does any one know if this would be suffecient for me to set the ny bar exams.

I think it would be. You can sit the NY Bar with a recognized LLB from a Commonwealth Law School.

There's only one way to find out if you're eligible to take the NY Bar exams. Just send the State board of law examiners your transcript (once you've finished your degree) with a detailed account of the courses you took. They will then make their determination, and get back to you. Most often, students enroll on a NY bar review courses, and then check their eligibility only to find out that they can't sit the exams!! So my advice to you - is once you've graduated, send your detailed transcript to them! Good luck!