| Not sure if you've tried this, but the best thing about steel and aluminium is that their thermal expansion coefficients are different. Basically they expand and contract differently when cooled or heated. Going through the process of heating and cooling can in most instances break the oxide binding between the two metals, and the bolts should come out more easily. However don't do the heating or the cooling rapidly or you could cause fractures in the metal. Hard to do in Australia as it's 30c outside, but it's probably cold enough outside in England to give you enough temperature range. Good luck... |