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Blocked (?) Mb 144 Nib

Doug1426

By Doug1426
in Repair Q&A

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Doug1426 Vintage

Doug1426

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I recently acquired a burgundy MB 144. There is no flow whatsoever through the nib. Trying to force water through the nib using a bulb inserted in the end of the section meets 100% resistance. I have soaked the section & nib overnight in JB Flush. I have also soaked it in Rapido Eze for 36 hours, and put it in my ultrasonic cleaner for over 12 runs of 5 minutes each. Still, total resistance.to any flow through. Could there is dried ink somewhere inside that the solution cannot reach?

 

Should I keep trying with the Rapido Eze? How safe is it to use for so long? Or should I forget it and try to remove the nib?

I've never run into this before...soaking always worked.

 

Thanks for any help/ideas.

"History Teaches us that men and nations behave wisely once they have exhausted all other alternatives." Abba Eban

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Chrissy Museum Piece

Chrissy

Posted
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It sounds like you've tried everything that should have worked by now apart from removing the nib and feed.

 

I'm not sure whether they just pull out or not because I've never had a 144, but it sounds like getting out the nib and feed is the next logical step.

 

Are you 100% certain this pen is authentic?

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Doug1426 Vintage

Doug1426

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It sounds like you've tried everything that should have worked by now apart from removing the nib and feed.

 

I'm not sure whether they just pull out or not because I've never had a 144, but it sounds like getting out the nib and feed is the next logical step.

 

Are you 100% certain this pen is authentic?

Thanks Chrissy. I'm sort of wondering the same abut removing the nib & feed. Is there a special tool needed to remove the collar?

About the pen, yes, I'm sure it is authentic.That's about all I'm sure of right now on this pen.

"History Teaches us that men and nations behave wisely once they have exhausted all other alternatives." Abba Eban

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Chrissy Museum Piece

Chrissy

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I've never seen a tool that fits a 144 model, although I have one that fits a 146. Does it have the slots for a tool to fit the collar? If not then the nib & feed might either pull out or could potentially be knocked out with a hollow rod that would protect the cartridge piercer.

 

I can only reiterate that I don't know though, because I've never had this model.

 

Hopefully someone will come along who has had the nib and feed out of a 144.

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siamackz Collectors Item

siamackz

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I think different models differ. See thread https://www.fountainpennetwork.com/forum/topic/291839-disassemble-a-mb144/

 

I am restoring a 144 right now and the nib and feedbjust pulled out easy.

 

Other things to try:

- you said you soaked the nib in rapido eze. Do you mean you filled the cartridge withrapido eze and left the pen in water nib down? That might help

- look inside the section with some good light to see if anything is blocking the feed?

 

Getting the nib and feed out should surely resolve the issue

My Vintage Montblanc Website--> link

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niksch Donor Pen

niksch

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What I would do is skip removing the feed and collar. There is clearly no leak from the collar, so just knock out the nib and feed from the section using a knock-out block. Then you can address whatever blockage is in the nib/feed combo.

Hard times don't last, but hard people do.

 

Thank a Veteran.

 

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Doug1426 Vintage

Doug1426

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Thanks everyone for your help. I gave it another 12 hours in Rapido Eze and a few more cycles in the ultrasound and was finally able to pull the nib and feed out. Thanks Siamackz, for letting me know it was a friction fit.

 

The entire feed was filled with, uh, gunk, A good cleaning of the nib and feed and it writes wonderfully.

"History Teaches us that men and nations behave wisely once they have exhausted all other alternatives." Abba Eban

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Chrissy Museum Piece

Chrissy

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Thanks everyone for your help. I gave it another 12 hours in Rapido Eze and a few more cycles in the ultrasound and was finally able to pull the nib and feed out. Thanks Siamackz, for letting me know it was a friction fit.

 

The entire feed was filled with, uh, gunk, A good cleaning of the nib and feed and it writes wonderfully.

 

Always good to know what eventually worked. :)

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siamackz Collectors Item

siamackz

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Thanks everyone for your help. I gave it another 12 hours in Rapido Eze and a few more cycles in the ultrasound and was finally able to pull the nib and feed out. Thanks Siamackz, for letting me know it was a friction fit.

 

The entire feed was filled with, uh, gunk, A good cleaning of the nib and feed and it writes wonderfully.

Well done!

My Vintage Montblanc Website--> link

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CS388 Antique

CS388

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Thanks everyone for your help. I gave it another 12 hours in Rapido Eze and a few more cycles in the ultrasound and was finally able to pull the nib and feed out. Thanks Siamackz, for letting me know it was a friction fit.

 

The entire feed was filled with, uh, gunk, A good cleaning of the nib and feed and it writes wonderfully.

 

Excellent!

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