Any and all help on the following deeply appreciated.
A few weeks ago, I purchased a Graf von Faber Castell "Intuition" from the Fountain Pen Hospital in New York. (No complaints about FPH at all. Loved going to the store and meeting Steve after years of doing business with them at distance.)
I dipped the pen in the store, and the nib was a dream. The pen felt good in my hand. I bought the pen, and got on a plane a few days later, back to Mongolia, where I live.
Got the pen home, filled it from a bottle, and began writing. Great start. However, after the initial charge of bottle ink in the feed was exhausted, the pen simply stopped writing. No ink flowed from the chock-full converter.
I emptied and flushed the pen -- pin-drop of clear detergent in the cool flush water. Tried again. Same result.
(Note: This does not appear to be a nib problem. The nib conducts ink just fine when there's ink in the feed.)
Consulted FPH to find out more about the Intuition nib/feed assembly. Armed with information that the nib/feed is friction-fit, I removed the nib and feed from the section. I then gently ran a razor and my thinnest brass shim down the feed channel to make sure it was clear. Reassembled the pen without difficulty. Refilled and wrote. Same result. (Initial writing excellent, until ink in the feed was exhausted, after which zero ink flow.)
The pen is simply not getting ink from the converter reservoir to the nib.