What are considered neck cranks?
im very unsure about this
if any one can clarify, it will be greatly appreciated

Pretty much any move in which the bending and/or strentching of the neck is used to gain a submission (as opposed to a choke, where the idea is to cut off the flow of blood to the brain or air to the lungs).

Examples:

- Kazuyuki Fujita's scarf hold on Hans Nyman
- Tito Ortiz's side headlock on Yuki Kondo
- Mark Kerr's can opener on Borisov Igor

thx lei
would a guilotine be considered a neck crank?

nope....thats more of a choke

A crank usually puts pressure on the trapezoid muscles (traps) and posterior neck muscles.

a guillotine, depends how you execute it. can be choke or a crank

Well, even if you're trying to crank witha gulliotine, the basic mechanics in applying it make the choke unavoidable.

Example: Barbosa's gullitiotined on Uno. Even though he was cranking the ever loving **** out of Uno's head & neck, Uno tapped out due to the choke aspect opf the move.