Aurora 88 piston seal replacement cartridge

[fountainbel]

Th original Aurora 88 replacement piston seals being hard o find, I've made an alternative O ring sealing cartridge.
The cartridge consists of a machined Delrin ring in which an O ring in installed.
I've already successfully used this approach for replacing the cork seals on other pens.
The cartridge bore just fits on the existing piston seal seat, while its width is identical to the original stacked packing assembly
Using the original enclosure nut the cartridge is locked down on the piston rod.
Benefit if this approach is one uses modern sealing technology, while completely reversible, nothing is changed to the original parts.
The attached pictures show the set-up
Francis


http://i62.photobucket.com/albums/h89/f ... ncart2.jpg
http://i62.photobucket.com/albums/h89/f ... ncart1.jpg