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Old April 6th, 2012, 02:19 PM   #7
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I have a lot of experience with cast. You need nickel rod and arc for sure. V grove the crack/ joint with a grinder. Pre heat with a torch. Weld it. Nickel rod burns alot different than most arc rods. I would suggest you try a couple times on a scrap manifold to get the feel and heat right.
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