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Thread: Leaky Leonardo MZ

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    Default Leaky Leonardo MZ

    My Leonardo Momento Zero seems to be leaking ink. I think it's coming out at the base of the nib unit/section interface and I think it started after I swapped nib units to try some different nibs. I'm wondering if there is supposed to be an o-ring or something on the nib unit, because there isn't one on mine and maybe I lost it during the swap. Is there? Anything else I should look at?

    Thanks!

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    Senior Member Jon Szanto's Avatar
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    Default Re: Leaky Leonardo MZ

    It is always possible that in inserting the new nib, the nipple of the nib unit got mashed in some way when connecting to the converter. In the MZ pen, the converter isn't just pushed into place, but has threads and is screwed into place (apologies if you knew this). A regular one would just pop out if the nib unit wasn't mating well, but maybe in this case... ?

    If I were you, I would unscrew the barrel and section, unscrew the converter, remove and replace the feed, putting a little silicone grease on the threads of the nib unit, and then replace the converter by screwing it into place. Take a good look at the threads on the nib unit to make certain you didn't cross-thread them. If it doesn't leak, great; if it does, try one of the earlier ones that didn't, and then compare and see if the new one has a flaw.

    That's the best I can suggest without having it in front of me. Good luck!
    "When Men differ in Opinion, both Sides ought equally to have the Advantage of being heard by the Publick;
    and that when Truth and Error have fair Play, the former is always an overmatch for the latter."

    ~ Benjamin Franklin

  3. The Following 3 Users Say Thank You to Jon Szanto For This Useful Post:

    AlohaPens (July 19th, 2021), Chrissy (July 11th, 2021), sworist (July 10th, 2021)

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    Default Re: Leaky Leonardo MZ

    Thanks, Jon.
    I also have some additional nib units (I've just unscrewed and replaced the whole unit in this case and not pulled out the nib/feed), so I suppose I should also try a different nib unit that might tell
    me if something got smashed or so. I also haven't tried the silicon grease - could be the ticket.

    Scot

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    Default Re: Leaky Leonardo MZ

    Check the nib unit. I know the newer models come with Jowo nibs and Jowo had a spat of problems with cracking housings.
    I had a similar leak on a pen from a custom maker and it turned out to be the housing had basically split in two.

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    AlohaPens (July 19th, 2021)

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    Default Re: Leaky Leonardo MZ

    Thanks, Aurelius. Will do. The leak seems to be slow, so it's been manageable, but I need to fix it. I'll take a closer look.

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