I'm still questioning your explanation about "when i manually actuate the float mechanism up and down the "pin" on the needle compresses FIRST and then the needle seats"
You do have the clip on the needle shaped like a "C" don't you where it should hook to the float? It sounds like that is entirely on one side of the float hinge and not hooked around it.
Your needle looks like this one and has the "C" clip on the left end?
You do have the clip on the needle shaped like a "C" don't you where it should hook to the float? It sounds like that is entirely on one side of the float hinge and not hooked around it.
Your needle looks like this one and has the "C" clip on the left end?