I got a new auger yesterday. My old auger was set up with a set screw. The new auger has a cotter pen. Does my auger rod have to have a hole all the way thru it?? It only has one side drilled out. The motor has a hole all the way through it. I'm just for now using the set screw but the motor is turning hitting the fresh air intake. I had to zip tie it to stay off the fresh air intake. Auger is turning the same as the old one. Stove is a NPS45