I doubt that would work because the wire probably wouldn't fit on the core.You've rebuilt it as a 12V motor!
Try increasing turns. Use same diameter wire as the older one.
How much would a new motor cost?cra said:I paid $300. to have it done and he says it worked on 12 volts and it will work on 24 volts as he had no 24 volt supply to test it with when I picked it up.