I have a used Jotul GF200 DV11 Lillihammer used previously on NG. I bought the kit to convert to LP (low elevation location) but I can't remove the pilot head (hood) to change the pilot orifice. The instructions with the kit show a clip but there isn't one. I have nearly stripped the brass nut trying to unscrew the hood. Heating it and penetrating oil has made no difference. I have tried simply pulling straight up - no movement. I'm a remote location so no dealer nearby and winter is coming.