I kinda did the same thing when I changed out to the controller from the Toggle... The cutouts had shifted slightly and were making contact with the piping... Pulled them down and had to retorque the little set screws on the shaft (Mine, unlike yours, were loose
)... They worked great fro about 4 months but are acting up again. I think I'm just gunna buy new motors like you. How much were they from QTP? Like 150?