I suspect you may be confusing the pulley with the belt.
A pulley is a hunk of metal that looks like a wheel with a "V" like groove around the edge. It can be connected to another pulley by a "V" belt.
It is unlikely that the metal wheel is changing shape while it is turning. Either it is bent and you can't see because it is turning so fast or you are refering to the "V" belt that connects the pulley on the engine to the pulley attached to the impeller drive shaft.
Assuming it is the belt then yes it is bent and more so when you engage the auger control. See my expalantion. The idler wheel pushes against the belt causing it to get tighter. This cause the pulleys to engage and start turning if everything is tensioned properly. Its not hard to tension it properly you just loosen the bolt holding the idler pulley and move the pulley in to tighten and out to loosen. From the sounds of it you want to move it inwards. Tighten the bolt and try engaging the auger control. The belt should start turning the auger. When you release the control the belt should start slipping and come to a halt. If you have the idler all the way in and it slips with the control engaged then either the control needs to be adjusted or you need a new belt.
To adjust the control you folllow the cable down to where there is a threaded linkage. You can sometimes tighten it up a bit but normally you need to get a new belt at this point.
Replacing the belt is fairly complicated to describe. Hopefully its in the manual.
If the pulley is actually bent then it needs to be replaced and then you get to tension the belt.
This message was modified Feb 27, 2007 by nibbler