During my career as a machinist, I have brazed many pieces of cast iron back together. The issue I see is getting the crack clean enough to get solder to stick and flow. Cast iron is really porous so any oil or anti-freeze be difficult if not impossible to remove. When brazed, I would vee out the crack to get to clean metal. Once clean, it brazed beautifully.
In my opinion, the crack is way too big to effectively fix and as a buyer I would steer clear. Save/Sell what is good, and scrap the rest. You’ll save yourself a big headache.
Last edited by Phak1; 01/06/2023 10:36 PM.
