Apparently there's been a problem with the cowling rubbing the radiator on startup with RV-12's, which cause the radiators to leak and need replacement. A fix increases the gap between the radiator and cowling. But it requires you to take the radiator off, cut off a couple of flanges and/or ears, and rivet on a new bracket. So I was able to get the radiator off. But using a cutoff wheel to cut stuff off filled me with some concern. Any slip cuts into the fins. So I put some .063 over the coolng fins and duct taped it down. I was able to cut the flange off, and then I cut the "ears" ALMOST off and then just wiggled them until they snapped off. Looking at the SB instructions suggested that's what Van's did, too, as you can see a little "point" there. You have to do that because otherwise you're almost certainly going to cut into the fins.