I have a big ol’ box of motors that have wiring issues of one type or another. Most of them are shorted/broken where the wires go into the motor casing and others have pins broken where they plug into the cortex. Anyone done any good fixing these? There isn’t much room inside the cases for soldering…
I can’t speak for the wires that are broken inside the casing as I’ve never had that issue, but the pins on the connectors are easy to replace.
Get yourself a good pair of wire cutters and strippers (or combo), and some DuPont 3-Pin housings (like this example) and DuPont Male Crimp Pins (like this example). You’ll also need a crimper that fits the size wire, and then just follow any of the tutorials out there on crimping DuPont connectors.