Originally Posted by Deus Machina
The comment I had read did say you can use the pin to lock the cam in place to break the crank gear loose.
Well, bad instructions or maybe you didn't read something well. I don't know.
What I do know is that you don't need to loose crank gear for timing belt job. And if you were trying to replace crank pulley then you do it by attaching long ratchet to the bolt and turning the engine starter (in short, if you didn't do that before you better read into detailed procedure).
Let us know how it went with releasing the stuck pin.