MachineMan

Thank you for your reply, I appreciate that everyone seems to have taken a personal interest in my...umm..shall we say, mistake? I hadn't considered holding the thing with a strap wrench or belt, but it sounds like it would work very well. Once I get the thing off, I was going to take my dremel tool with a cutting disk and cut the broken blades level with the base and then do likewise with the ones on the opposite side - in order to balance them out. I agree with you that cast aluminum can be unpredictable in how it "breaks", so at the very least, I'll deeply score the counter-balancing blades level with the base and then "tap" them with my small geologist hammer....that is, if the aluminum clogs up the cutting disk. if not, I'll just cut the blades clean through at the base. We'll see. I'll post pics of my folly...and remedy to same on my photobucket page. Check back, because I'll be updating over the next few days as I unscrew this situation.

http://s1195.photobucket.com/albums/aa381/Swede-Steed/