Japanese Jumbo Pen Packing Unit

[Valthero]

Good day,

 

I am attempting to repair a Japanese Jumbo Pen. The cork seal at the rear of the barrel is covered with a threaded washer. I have successfully removed the section, as well as the blind cap from the plunger rod, giving me free access to everything inside the barrel. However, I can't get a good grip on the threaded washer to remove is so that I can replace the cork seal. Has anyone completed this repair before, and if so, any tips?

 

Edited with a picture

Edited September 13, 2020 by Valthero

[fountainbel]

You could try using a small triangle scraper or even a small triangle file to unscrew the cork enclose screw.

Both alternative tools should have triangle section which enters the bore and get stuck when pushing further.

Threads are normally right hand so screw counterclockwise to get the the screw out.

Wishing you succes !

Francis

[Valthero]

You could try using a small triangle scraper or even a small triangle file to unscrew the cork enclose screw.

Both alternative tools should have triangle section which enters the bore and get stuck when pushing further.

Threads are normally right hand so screw counterclockwise to get the the screw out.

Wishing you succes !

Francis

Thanks, Francis! I found my small triangular file, and using your method, I was able to turn it out no problem. I didn't realize it was such a small washer, making a cork seal will be a breeze. Cheers!

Edited September 20, 2020 by Valthero