Cast aluminum is an easy repair with Super Alloy 5 and an oxyacetylene torch.
Mike brazed this cast aluminum intake manifold from a Toyota Land Cruiser–it had a 3 inch cut through the cast aluminum.
Thick aluminum dissipates heat quickly, so oxyacetylene was the preferred choice to ensure the base metal remained hot enough to flow the Super Alloy 5 aluminum welding rod.
Note: Please observe all AWS Safety & Health Guidelines when using Muggy Weld products.