Yes, I do have that valve and when I would push on that lever it would feel like there was pressure there and it would make a squawking sound as if there was pressure.  My brother in law, who is working on it said if it had pressure, then it would not be the pump.  I wish I had hooked it up to a cylinder but I did not have one and he began to look in to it before I found one.  I would assume we are correct that if it did have pressure that would eliminate the pump, but then what else could it be?  All linkage is correct.