oldgit
Well-known member
Need small patch put on a cast iron manifold.
For patching, low tempreture 'Sifbronze' works. I used it for re-attaching cast iron fins to motorcycle cylinders. A guy in the same business does it the exact same way but with silver solder nowadays. That might be better, even lower tempreture used. I ALWAYS preheated the casting on a 4KW industrial hotplate, ALWAYS bought the tempreture down slowly afterwards to avoid thermal shock.Need small patch put on a cast iron manifold.