Hey guys, I am working on restoring an old hit and miss engine and in the process of trying to remove the gib key that holds the pulley to the shaft....it broke.

Now the question is how to weld the broken piece back on or do I weld a tab on the end of the gib key so I can use a slide hammer to remove it?

The question is how would I weld something that small? Do I have to preheat it and slowly cool down?
I did order some aluminum bronze tig rod and see if that works. I have AC/DC Tig, stick and mig capability at home.
Any ideas or suggestions?

here is a link to a video showing the problem and how small the piece that I am working with.

http://www.youtube.com/watch?v=As6tyNdPXOE

Cheers

Richard