Removing Piston Mechanism Problem

[mislav]

Another piston problem... I am not sure how to remove piston mechanism from Montblanc 264 fountain pen. I tried to unscrew it, but it does not go. I am afraid to use more force... Is there any special tool to remove it or I should just use more force.

 

May the force be with you!

[mislav]

Anyone?

[Matt.Nethery]

Not completely sure as I have never worked on the pen your referring to, but watch this video it should give u some ideas. The pen in the video is a Montblanc. He uses a heat gun and some special gripping tool to open pen up and remove piston.

 

http://youtu.be/KUq_xL6ePkE

[mislav]

@Matt.Nethery

 

Thank you for this interesting video. I will try to do it same way. Just need to get special pliers.

Edited March 27, 2015 by mislav

[CS388]

I had a 254, which looks to be of a similar construction, and the piston mechanism was a screw in.

 

I needed heat (from a hair dryer) to loosen it up. I used pliers to grip the knurled ring (I protected the cosmetic finish by wrapping it with a rubber band) It worked - but it was an old parts pen I was working on, so I had little to lose. If you try it, proceed with great care.

 

Good luck

[mislav]

Thank you CS388!

[stephanos]

What kind of pliers did you use?

I ask, because the knurled ring is really thin, and I'm interested in finding a way to grip the piston ring - and only that - so that I can remove the piston (on a 254, like yours) and not wrench the pen apart by mistake.

 

 

I had a 254, which looks to be of a similar construction, and the piston mechanism was a screw in.

 

I needed heat (from a hair dryer) to loosen it up. I used pliers to grip the knurled ring (I protected the cosmetic finish by wrapping it with a rubber band) It worked - but it was an old parts pen I was working on, so I had little to lose. If you try it, proceed with great care.

 

Good luck