We are still on exhaust bolts. Now trying 50/50 mix of brake fluid and cellulose thinners. I will paint this concoction on twice a day for a week.
I also bought a decent hex bit that fits nicely in the hex bolt and allows me to attach a nice socket wrench. Only just fits (you can see it touching the exhause manifold) so it is not lined up entirely square. I also have the problem of how to reach the other bolts for cylinders 2 and 3. Apart from the exhaust manifold getting in the way, the frame tubes are an additional obstruction. The set up shown below will not work with these cylinders!
