Taking apart a 146 nib assy.

[slippery when wet]

Yes

[Mister Mont Blanc]

Yes

Oh perfect! Thank you Mark, I feel much better knowing that now. I planned on using this one to tinker with and learn how to work on them

[talkinghead]

Okay, so you're saying the same silicone grease used to lube the piston can be used to seal the collar threads which may have been done on this pen before?

 

Yes

[Paul Raposo]

Yes

 

What talkinghead said.

 

After getting some advice from th, I tried silicone grease on three MB pens and no leaks. I've also used Ron Zorns Sheaffer formula section sealant with great results.

 

I wanted to try pure beeswax but the pellets I bought had a really foul odour after melting them, so I went back to pure silicone grease.

[Pen Nut]

Thanks for all the comments! For now, I have used a generous amount of silicone grease, but I plan to use a locally made single part Silicone RTV sealant called Anabond 666 available in 100gm tubes. Pls take care not to overtighten the feeder case while refitting, high likely hood of it breaking.

 

Best,

Hari

 

Hari

 

Re the above. Have you read the below ?

 

RTV gets the thumbs down buddy

 

https://www.fountainpennetwork.com/forum/index.php/topic/276679-bubble-gum-pink-sealant-mystery-solved/

Edited October 26, 2014 by Pen Nut

[hari317]

 

Hari

 

Re the above. Have you read the below ?

 

RTV gets the thumbs down buddy

 

https://www.fountainpennetwork.com/forum/index.php/topic/276679-bubble-gum-pink-sealant-mystery-solved/

ya I have seen the thread, RTV is a very broad category of compounds, the thumbs down is for certain specific types with some specific properties. Good only. Having said that, I am interested to know what actually the compound in the listing is, rather than guesswork about what all it is not

Edited October 26, 2014 by hari317

[Pen Nut]

ya I have seen the thread, RTV is a very broad category of compounds, the thumbs down is for certain specific types with some specific properties. Good only. Having said that, I am interested to know what actually the compound in the listing is, rather than guesswork about what all it is not

 

Totally agree. Got the spec sheets for one brand of silicone greasesometime ago and it was not as 'pure' as you would think

[Mister Mont Blanc]

 

What talkinghead said.

 

After getting some advice from th, I tried silicone grease on three MB pens and no leaks. I've also used Ron Zorns Sheaffer formula section sealant with great results.

 

I wanted to try pure beeswax but the pellets I bought had a really foul odour after melting them, so I went back to pure silicone grease.

Well now I can't wait to work on these babies! I'm obviously going to wait for a reason first but I'm glad I don't have to go find a sealant to use and I found out my new 149 doesn't use sealant at all! I'm just wondering, do you really need a tool to remove & replace the assembly? If I could unscrew it using my grip on the nib & feed, is that feasible or dangerous?

[Pen Nut]

Well now I can't wait to work on these babies! I'm obviously going to wait for a reason first but I'm glad I don't have to go find a sealant to use and I found out my new 149 doesn't use sealant at all! I'm just wondering, do you really need a tool to remove & replace the assembly? If I could unscrew it using my grip on the nib & feed, is that feasible or dangerous?

 

No way ! You would destroy both nib and feed in my view, them units are well tight. Invest in the correct keyway tool & use it correctly and you will be fine.

[Mister Mont Blanc]

 

No way ! You would destroy both nib and feed in my view, them units are well tight. Invest in the correct keyway tool & use it correctly and you will be fine.

Haha okay well the vintage one came unscrewed easily but I would be more worried about tightening it back in place. I'm actually planning on making my own tools as I have a few things that would work and are adjustable so they can work with the piston AND the nib unit.