I am getting to the FWF portion of my Speedster project. My used engine has threaded bushings which protrude forward and look like they are pressed into the prop flange. I'm trying to use an IVO 3 blade ultralight. Does anyone have experience with removing these bushings? The bushings are on approx. 4" diameter where the holes for the IVO are at approx. 3" diameter. This motor was originally mounted on a Searey pusher configuration, Unknown propeller.