Hi Fragpie

This is just a thought which may need passing by some of the more experienced members before being acted upon. The type bars all pivot on a common curved pin. If this pin is starting to wear, the centrifugal force of the type bars swinging up may be enough to lift the bar into the worn spot. My thought is if one were to slide this curved pin by 1/16" (1.6mm) one way or another, the type bars would then pivot on an unused section of the pin.

I'd be interested to hear Tom The Typewriterman's views on this thought and idea before actually going ahead with it. All the best,

Sky

Skywatcher is correct.  The first thing you can try is to move the segment wire over a little to an unworn portion.  'A' and 'E' are amongst the first typebars to wear since they are the most usedcharacters in the English language.  Replacing the typebars with those from another machine will probably make the problem far worse since the alignment of the typeface (type slugs in the USA) was probably different when the donor machine was manufactured.  This might only work if you can resolder the typeface and the donor typebar is unworn.  There is something else you can do if the hole in the typebar is enlongated.  You can remove the typebar and carefully punch round the worn part of the hole to spread the metal.  Check your progress with a spare segment wire, then finish by removing any surface imperfections by rubbing the typebar on a flat surface covered in emery cloth.  But honestly I wouldn't bother.  It is a lot of work for only a little improvement, and as you say, the slightly wobbly alignment adds character to the old typewriters that we all love.