I have the exact same problem and I didn't trim anything. The price the motor goes into is just crappy. I've had to put mine back in several times. I'm going to run gorilla tape from sides of motor mount and attach to outside of incubator to keep it making connection. I have run a zip tie that...
Ingenuity. Beautiful work. I have my plastic piece but it keeps pulling away from the motor. I was wondering if I should glue the two pieces together. I have a load of eggs in incubator and just noticed it was loose. I got it back on but this is the second time in two days it came loose.
