Originally Posted by
Sorin
I appreciate your imput, but i have cottered and not square type cranks . Upgrade everything means change everything and loose identity of this bike. Is not what i intented to do atm. Regards,
Here is probably your best bet to remove the fixed cup -
https://www.sheldonbrown.com/tooltips/bbcups.html
Scroll down to where the late St. Sheldon describes fixed-cup tools. I have successfully used this method on my old Gitane and a Jeunet 630 and it DOES work.