Sweating Ink

[btreloar]

My Montblanc pen has begun to "sweat" ink inside the cap. The revealing symptom is ink on the far edge of the grip (closest to the nib) that gets on my fingers as I write. I also seem to get a faint bit of ink from the main portion of the grip as well.

 

If I form a cone of tissue and feed it into the barrel, it comes out with spots of ink on it.

 

I've completely cleaned the pen with fountain pen cleaner, have washed the cap thoroughly, and yet the problem persists. Does the pen need service from Montblanc? Or are there other solutions I can try?

[wastelanded]

I had the same issue with my 264. It turned out to be a hairline crack where the ink window meets the grip, so small it wasn't visible to me even through a loupe.

 

My master repairman took a few days to make it right, as it was a layering process, but now the pen is leak free with no visible signs. You might want to have it looked at, so a pressure test can be done.

 

ETA: I forgot to ask if this is a modern or vintage pen you have.

Edited February 5, 2016 by wastelanded

[btreloar]

Thanks for the response! This is what I would consider a modern pen -- bought new in about 1975. Or does that make it "vintage"?

[jar]

Thanks for the response! This is what I would consider a modern pen -- bought new in about 1975. Or does that make it "vintage"?

What model is it?