Cylinder head water manifold (early)

[David.H]

Since putting in antifreeze the inevitable has happened. A leak appears from the top hose where the manifold meets the head, It has a tired looking rubber gasket. I see that new manifolds, stainless studs et al are available. My manifold looks ok, is it worth changing the stud? I have nor disturbed anything yet. I imagine the stud screws into a cross piece in the head (or should do!) The parts list shows a set screw, I have a stud with washers & a nut,. Any advice/pitfalls? I know the side manifold is a bit of a minefield, but that (fingers crossed) is holding out.