Issue disassembling this TWSBI Eco

[Poojaby]

Hello! I could really use some advice on this, hope someone out here has gone through something similar or has any alternatives as in what to do.

 

Someone brought in a TWSBI ECO pen for me to try reassembling it because they weren't succesful doing so, I've given service to many of these in the past and dealt with many stuck plunger related situations, but this time I really have no idea how this person made this happen. I'm attaching a video trying the mechanism so I can show you and explain myself better because english ain't my first language and don't know how to elaborate on what's going on (my apologies and thanks for understanding).

 

The threads don't look damaged, I'm wondering how they managed to put it all back in, the wrench obviously does not fit. I don't want to force anything because I'm afraid I could make irreparable damage to it, so I'm having a hard time figuring out a way to solve this.

 

Thank you all who took a moment of their day to read this.

x

[AceNinja]

maybe try using something thin, flat, but rigid enough as the wrench to slide in the small gap and unscrew?  something such as 2 piece of credit card.

[Poojaby]

19 hours ago, AceNinja said:

maybe try using something thin, flat, but rigid enough as the wrench to slide in the small gap and unscrew?  something such as 2 piece of credit card.

Great idea, I already tried but no plastic card fits in there, I'm still on the look for the perfect piece that I could use as a wrench.

[Beechwood]

There is a very good youtube video on the Eco.

 

https://youtu.be/xuUFaZ8ZbR8

 

The video showed me how to put the thread through the knob to move the piston correctly, I had made a similar mistake to your video.

 

I found that the supplied plastic wrench with the Eco was not up to the job and the jaws would open, I used a thin, metal wrench.