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Nib Tuning For A Cheap Pilot 78G Bb?

78g bb double broad

3 replies to this topic

#1 sidpost



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Posted 23 February 2017 - 15:36

I bought a Pilot 78G with a BB (1.5mm flat stub) nib which writes well if I bear down on the nib, nothing extreme but heavy handed like with a ballpoint that doesn't write well.  With no pressure it basically doesn't write at all.


I want to put document proof ink it for signatures but, I can't live with the pressure needed to get ink to flow.  When I bear down it seems to write well at the speed I write so, I'm guessing the feed is adequate and the nib itself needs to be tweaked.  The slit between the tines appears to be a bit too tight which is what I think is the problem.  What do I do to increase ink flow to the tip without excessive writing pressure?  Is this something a total novice can do without too much risk of screwing up the pen?




On a quest for better pencils and pens in rural East Texas.   :)

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#2 Sailor Kenshin

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Posted 23 February 2017 - 15:57

Pilot 78Gs are generally dry writers, so no surprise there. Try shimming or 'flossing' it with either a brass shimming sheet or old film negative. Press down LIGHTLY with nib on paper, work shim sheet between tines, draw through gently.

#3 Inkantadora



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Posted 28 February 2017 - 01:38

I am literally in love with my 78G and yes they are very dry straight out of the box because the nibs are super pinched together. So cleaning it well and using a brass sheet between the twines does wonders.

Also, the C-20 converter is a bit annoying because you can't see the level of ink. So if the pen is suddenly dryer than it was a while ago when you started to write, I would pinch the converter to get some ink up into the feed.

Hope this help!
In Instagram, I am also Inkantadora . I live and dream in saturated and sheening color.

#4 Witsius


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Posted 28 February 2017 - 04:42

Check the tines to make sure they aren't clamped tightly together.  My 78G wouldnt write at all out of the box.  I had to open the tines, but after that it wrote fine. 

There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.  Hamlet, 1.5.167-168


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