How to Fill a Pilot Con-70 Converter

The Pilot Con-70 converter is pretty cool. It’s kind of this hybrid button/vacuum filling cartridge/converter that only fits some of the larger Pilot pens, like the Custom 74 (a favorite of mine), the Justus 95, and the Metal Falcon. Because so few pens use it and it is so different than most other types of converters, it can be confusing to fill if you don’t quite know what to do. So that’s exactly why I made this video!

Pilot Con-70 converter in a blue Pilot Custom 74

Write On,
Brian Goulet

2017-10-11T14:20:22+00:00 February 10th, 2014|Tips & Tricks|15 Comments
  • Myke N


    Thanks for the video. I had thought I was doing something wrong having to really grip the converter so tightly. Glad to hear it's normal for this converter.

    P.S. BAM! (Why not?)

  • anaximander70

    My Pilot Custom Heritage 92 has a very similar-looking nib and feed. Does it also fill from mid-feed rather than up near the pen body?

  • David

    1. Does the CON-70 converter disassemble for cleaning and lubrication?

    2. I don't understand the mechanism. You say it is like a vac-fill pen. Then there must be a path to release the pressure built-up in front of the piston when you push it down thereby allowing a vacuum to suck up ink when the piston returns to the original position. Or is there some sort of one way valve involved somewhere?

  • conib

    Brian, can you do a video that shows a complete disassembly, lubrication, and reassembly of the CON-70?

  • steveH

    The Con-70 also fits the Pilot Custom 845, 743, 742 and Custom Heritage 912 (and a couple others I've never seen). Which, for me, are points in favor of all four pens listed.

  • Ron Johnson

    Now I feel a little dumb, but thanks Brian! Like many I guess, I had just the reaction to the Con 70 that you said: "this must be broken"–but, I just lived with it for a year, because somehow I got it to fill. But now thanks to this video, my Custom 74 is no longer iffy. I love this pen too.

  • Brian

    Hi: If you use Platinum Carbon ink Mon to Fri intermittently, how often should we flush the Century 3776

  • Robert

    Does anyone make flexible nibs for Lamy Al-Star?

  • Kevin Joric Apolonio

    I don't really have much in the way of inks, but I've managed to accumulate over a dozen bottles so far. I have a general idea of what I like now, so I've at least got that going for me. Anyway, of the inks I own, my top five (no particular order either) would have to be:

    NOODLER'S X-Feather – It's a great, solid black that works excellently on cheaper papers (a necessity in this day and age), and the archival qualities make this an excellent ink for more important papers. It does have a bit of an odour to it, but it's not the worst I've smelled. This is my daily writing ink, but since I've no experience with plain ol' Noodler's Black yet, that could change; the dry time on this ink is a bit bothersome.

    J. HERBIN Vert Empire – Of all of J. Herbin's standard colours (I've only personally tried four, though), Vert Empire has got to be my favourite. It has the characteristic excellent flow of Herbin inks, and the colour reminds me of a deep summery forest, with notable shading. I don't think it'd pass well for formal writing, but it gets a thumbs up from me for personal journalling, sketching, and correspondence. Also, I rather like the smell of the ink 😛

    J. HERBIN 1670 Anniversary Rouge Hematite – A lot has been said about this ink, really, so I'm not sure where exactly to start. It's unique in that it has microparticles of gold pigment in it (pigment usually spells death for FP feeds), so I'm of two minds about using this in pens I can't fully disassemble. Still, though the ink is far from waterproof or smudge resistant, it's quite simply one of the most beautiful and fun to use inks I've ever had. I rarely use it, save for cards and the like, so the one bottle I have is likely to last me a very long time.

    SAILOR Jentle Sou-Ten – This is my newest ink, so I've less experience with this than the rest. It's a nice deep blue with hints of turquoise, and it definitely lives up to its name; Sou-ten is Japanese for "summer sky", I believe. Anyway, it's well behaved and shades extremely well, with a beautiful red sheen that sometimes transforms its colour into a dark purple. The only thing I don't really like about it is its strong chemical odour.

    SHEAFFER Skrip Turquoise – This was my very first fountain pen ink, and it still holds a place in my heart (and daily rotation, haha). It's a bright, convivial colour that's definitely not suited to formal occasions, but works well for sketches and random notes. Decent shading and excellent flow. Not all that waterproof from what I remember (okay, I haven't used it in a while), but I'm not likely to use this for top-security documents or anything.

  • Josh

    Yea, I would love to see a video on how to disassemble the convertor to clean. It seems difficult to do so normally.

  • jrdemasi

    Anyone figure out how to get this thing apart? Stephen Brown shows it being done in a disassembly line video, but I can't seem to get my con-70 to unscrew. I really need some grease up in there! Brian, any help?

  • TrevorY

    I am still very new to the fountain pen world and thanks to an amazing friend of mine I am hooked and she is sharing some of her samples with me and hopefully my wife will give the gift of Ink Drop membership for Christmas. That being said my favorite inks so far, in no particular order are:

    1. Diamine Ancient Copper: This one just has a classy color and shading to it. I saw some complain of it getting crusty over night but I've not had that problem with the two different pens I've used it in and it has always flowed very consistently as well.

    2. Private Reserve Avacado: I received a sample of this from my friend above and I am now waiting for it to be back in stock because I am almost out. This is a very consistent dark green and it has played well with all the papers I've used it on.

    3. Noodler's Apache Sunset: I am with you on this one, it is so cool in a flex nib pen. I have one pen in particular reserved for this and I love to show it off because it is fun to see the reaction of some people as to how the ink changes.

    4. Private Reserve DC Supershow Blue: This is a great deep blue and I have only recently discovered this ink but I have been using it for my daily writing and with a fine nib it has been flawless so far.

    5. Noodler's Baystate Blue: I love the vibrancy of this ink. It doesn't play well with all papers but that just gives me an excuse to by better notebooks 🙂

  • Eva Yaa Asantewaa

    Breaking the rules and listing seven: Diamine Sherwood Green, Pilot Iroshizuku Kon-peki, Pilot Iroshizuku Kiri-same (this came as a big surprise to me!), De Atramentis Ruby Red (which is why something like Kiri-same would be a surprise), Private Reserve Ebony Purple, J. Herbin Violette Pensee, and Rohrer & Klingner Solferino. I'm still exploring, and there are probably a few more that could go on that list, but that's enough for now. I have unopened samples of Red Dragon and Apache Sunset and will be getting Liberty's Elysium at some point. I would go for the Noodler's Black but already plan on getting Aurora Black with my next order. I tried Majestic Blue, but I don't think I tried it with the right nib for it to really make an impression. I'll have to give that another go. Gosh! I love color–whether it be yarn or nail polish or fine art or nature. So, I'm going quite nuts with all of this ink!

  • Diamine Ancient Copper
    Noodler's 54th Mass.
    Noodler's Bad Blue Heron
    J. Herbin Ambre de Birmanie
    Diamine Macassar

    Honorable Mentions: Noodler's Air-Corp Blue-Black & Stipula Musk Green

  • Very helpful as always, thanks!