Started out on this job thinking it would be relatively simple but a small snag ensued. I was able to remove the other screws hold the old motor to the bracket plate & such, and once I got to this screw no matter how i tried I could not get it to do untighten. So obviously there is something that I am missing. Do I need an impact tool to get it off? Am I not supposed to turn the screw to the left to get it out? any insight or anybody that has done this job, please help me out.