I could have tried fixing the old motor. However, considering the amount of effort involved it was well worth the $100 for a new motor to know that I shouldn't have to mess with this again for a long time. It's way too easy to break one of the plastic pieces or drop a screw somewhere you'll never find it, so I plan on staying out of there if at all possible. Besides, I can always have my old motor rebuilt and sell it on eBay.