Re: Cracked Block
The heating and cooling must be done over many hours, I would prefer about 24 hours. That way it is heated/cooled though out. I have both brazed and welded cast iron, it is a very tedious job. Large castings requiring a lot of labor to remove, I would prefer pinning. A block with an internal crack will have to be removed so welding would be ok, but..... if you are not careful with that much head, you could end up with some machined surface warping
The heating and cooling must be done over many hours, I would prefer about 24 hours. That way it is heated/cooled though out. I have both brazed and welded cast iron, it is a very tedious job. Large castings requiring a lot of labor to remove, I would prefer pinning. A block with an internal crack will have to be removed so welding would be ok, but..... if you are not careful with that much head, you could end up with some machined surface warping
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