The 'whacking' mentioned in a previous post is important. It may be 'the' thing that does it. Assuming the direction of force is in the right direction. I read it should be counter-clockwise on the drive side, and also counterclockwise on the non-drive side. I don't know if that is universal but that's what worked for my particular frame. But the initial torque to get things started should be of an impact nature.