Hi, logged back in and ready to finish my project. My mk1 Orion has been stood a while (9 months). I fired her up today and all looking good, however, heard a grinding/rubber screeching noise from near timing pulley. I knew it's not from top end as I rebuilt this last year and was running perfect. I looked further and noticed water pump pulley seems loose, as in I can move it around about 5mm. Could this be the root of grinding noises? Much appreciate any help as I spent a fortune re building head and carb last year and don't want to ruin these. Cheers