A hanging detail from yesterday -- the stuck exhaust manifold stud. It unscrewed easily, part way, using a small female Torx socket, but then seized. Soaking it repeatedly with WD-40, and backing it in and out over an hour or so finally freed it. Because all the other studs were out, it was important to support the weight of the manifold by hand so as not to stress the bolt. With the stud out, I then tied the manifold up to the power steering bracket, as described above, to take the weight off the header pipe. The stud looked normal after it was out -- I was expecting to see lots of corrosion.