Update on my post #7230 on the top of this page.
I bought a bb thread tap and could fortunately save the frame. I had to cut away quite some material... The previous owner probably forced a bb in there the wrong way around.
Bb cups sit nice and flush now, happy days.
You might want to think about getting it faced at some point too, especially if running an external bearing bb as they are a bit more sensitive to parallelism.
Update on my post #7230 on the top of this page.
I bought a bb thread tap and could fortunately save the frame. I had to cut away quite some material... The previous owner probably forced a bb in there the wrong way around.
Bb cups sit nice and flush now, happy days.
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