sorted some tonight, WD-40...again, and old 1mm smaller socket hammered onto exhisting rotten nut, hammer home till its stuck solid, undo maintaining full pressure on socket. Next question then, ahem, how do you remove said bolt from my socket
I also drilled out the seat bolts, worked a treat, managed not to strip the thread with the drill bit too which is a bonus
Thanks for your suggestions all
you can get a socket set that is designed to work on rounded off nuts and bolts
I did see an ad for a socket like that, but not seen one recently, was it "crocodile " or something, anybody used one, any good??