90-97 Old Style M150 Piston Seal

[GMJEbonobin]

Hi everyone! I have an M150 that gets ink behind the piston and I've taken it apart. The only issue is I can't seem to find a piston seal for it anywhere, and I'd rather not attempt to make a cork seal myself since I've never done it. Does anyone know where I can purchase a seal for it?

[OCArt]

I believe the M150 is a relatively modern pen, post 1983, and uses a plastic seal not cork. Did using silicon grease on the barrel not solve the problem?

[GMJEbonobin]

Sadly no silicon grease did not fix the problem.. I really didn't want to have to replace the seal, and yes I know they had the new gaskets, but if I can't find a way to get a working gasket I'll probably end up having to retrofit one (if I'm even able to..

[Ron Z]

The modern 100/150/200/400/600/800/1000 (they're all the same ID) seals are not available to the general public, and the earlier seals and their replacements won't fit. These seals snap onto the end of the piston. There is no way to attach a cork.

[Bo Bo Olson]

Richard Binder sells or did sell gasket sheets and gasket cutters. I would imagine you would need to tell Richard which pen in this case a 150, so he can put the proper gasket cutter in the order.

Edited August 9, 2019 by Bo Bo Olson

[Ron Z]

Take a look at the exploded view of the Pelikan 800.

 

The only real difference between the 800 and the 150 is that the 800 has a bigger grip knob and the threaded brass bushing, VS the plastic snap in bushing of the 150 through 600 pens. The drive spindle, piston and seal are the same. You can see the piston seal, which I show sitting flat VS on edge, but it's the same seal. If you look at the piston, the end is a flat piece that the seal snaps onto. There is no way to attach a cork, flat seal, or 0-ring. You must use Pelikan's seal.

 

The earlier Pelikans after 1950 or so use a molded plastic seal that you can buy from David Nishimura. These will not fit the current (including 1980s) Pelikan pens.

 

The Mertz and Krell produced 120 from the 70s is in a class by itself. The seal is integral with the piston. When the seals fail, I have to modify the piston and fit it with two Viton 0-rings.

 

Let me say it again, in case it was missed. The inside diameter of all of the pens, M100 through M1000 is the same. They use the same mechanism and seal. The only difference is the size of the grip knob and the bushing that goes into the end of the barrel.

[Bo Bo Olson]

Ah Ha!!!!

"""There is no way to attach a cork, flat seal, or 0-ring. You must use Pelikan's seal."""

So much for plan A.

[mizgeorge]

Did anyone ever come up with a solution for this?

 

I have an MC120 that I'm rather fond of. In every other way it's an immaculately behaved pen, with a nice nib that I don't really want to have to move to another pen (which would start a daisy chain of swapping that I really don't want to get into) but the seal has become, for want of a better word, slightly incontinent.

 

It's not in any way damaged, just a bit tired. Has anyone ever tried 'plumping' one of these up again (makes me think of lip fillers) with something like silicone sealant?, I'm thinking here:

 

 

to try to fill out the bit where it's imploded a bit