My front alloy rim cracked just on the sidewall portion where the original manufacturing weld was. There is no deformation in the area and it appears that the first weld failed because it didn't have full penetration. Can I just notch out the crack and reweld it? I'm not sure if the origional rim has had any post weld treatments that the new welding would compromise. I have an event this weekend and I can't get a replacemet in time. Will my safety be in question if I fix it?