The link to Bleeding 101 is this and it worked for me:
http://c34.org/bbs/index.php/topic,6377.0.htmlNo fuel should ever come out from the knurled knob.
We have always stressed that when doing two things on a boat, do one, check to make sure it works, then do the second, or else you won't know what may have gone wrong.
It sounds like you've done the right things, but still have air in the fuel system.
I never crack the vent on the Racor, which, BTW, is the primary, the engine mounted filter is the secondary. Doing so could introduce, not eliminate, air in the system. I only crack the bolt on the top of the secondary filter, as discussed in Bleeding 101.
Once Ken Heyman, our Bleeding Guru, reported that he'd purchased a Racor replacement filter that had a wonky top, so check that as well as the replacement O rings, which should also have been lightly coated with diesel fuel before tightening.
When in doubt, start over. Good luck.