About a week ago I found an abandoned fountain pen in my drawer. I decided I'll try and make it work, since it always had a problem which I could never fix.
The problem is that the ink seems to be leaking, but I don't know where from. I tried cleaning it, I soaked it the entire day in lukewarm water to clean its system from ink, then I filled a cartridge with water to test if it leaks. The water obviously has different characteristics than ink, so it seemed not to leak then (or I didn't notice it, since it's water).
After that I put a usual ink cartridge in it to see if it still leaks. Well, it leaked. I took some photos of it so you can see how it leaks, if it's any use. I can't find the source of the leakage, it's not where the cartridge is, so it must be somewhere near the nib. Is there a possibility it cracked somewhere? When I leave it standing with its cap on, and when I open it the second day, it's mysteriously covered in ink like in the photo. It writes normally (not too thick), but a bit light because of the water experiment.
Can I fix this anyhow?
Here are the photos: