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Wing Sung 698 Leaking Into Cap


Rhincodon

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Pretty much what the title says. My boyfriend's Wing Sung 698 has had this issue since day 1, and mine just today exhibited the same thing. Basically there's ink in the cap but I haven't shaken it, dropped it, or twisted the piston. I'm running low on ink so I was wondering if low-ink piston fillers can get the same "burping" problem as eyedropper pens?

 

It looks like the ink is creeping along the feed in the grip and collecting on the nib, which then transfers to my hands when I write. Has anyone else experienced this or can help me decrease/prevent this? (This is my BSB-dedicated pen, so I really need to be careful where drips might happen!)

I'll come up with something eventually.

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1. I try to keep air volume minimal in the ink barrel by refilling when ink gets low, I have even added four mini transparent beads in it to minimize residual air space.

2. I have used sticky orthodontic wax (alternatively shellac) around the feed and nib to try to get them a tighter fit inside the section.

3. It is an excellent pen, to be honest mine stained the inner cap only very lightly, with a very few tiny ink droplets; and that was only when I carried the pen in my pocket and ink was quite low.

4. It is one of my top three pens I only wish it had a screw-in nib unit like the TWSBI 580 pen, but still it is one of my favorite daily carry-on pens.

 

Hope this helps.

Edited by Frank66

- Kaigelu 316 Modification (250 #6 Bock Nib / Beaufort Ink Converter)
- Titanium Bock Nib - Kaigelu 316 - Beaufort Ink

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- No affiliation with pen industry, just a pen hobbyist.

- It matters what you write, only for us it matters what we write it with.

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I had that problem once when I swapped the factory nib and feed for a Pilot nib and feed mid-fill. I just pulled the fit and switched without being sure it was dry. I suspect that allowed a sort of ink channel to get started. That makes me think that your nib and feed might not be as tightly inserted in as it should be, perhaps.

To hold a pen is to be at war. - Voltaire
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Thank you for the advice! I may start by refilling it, and then seeing if I need to secure the nib and feed more if that doesn't help.

 

I agree, Frank66; it's a great pen, smooth writer, I like the locking piston a lot. Very pleased since I bought it without any research! (Quite unlike me.)

I'll come up with something eventually.

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