I have posted a new article on my blog looking for ideas on how to lock the crownwheel bolts in AHX12. http://www.netbug.net/blogmichael/?p=421 Any realistic and novel and polite recommendations would be appreciated. Michael Salter 100 (1953) AHX12 (1953) Bugeye (1961) http://www.netbug.net/blogmichael