06-11-2020, 06:14 PM
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#4 (permalink)
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Base Member
Join Date: Jan 2009
Location: AZ
Age: 42
Posts: 190
Drives: Nismo 370z 09
Rep Power: 17
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Quote:
Originally Posted by Rusty
You have to find out if cast iron, cast steel, or stainless steel. My bet is cast iron.
For welding cast iron. The each end of the crack have to be drilled. The crack V'ed out. Ti welding would be best with Ni-Rod 99. Bolt the manifold to a thick steel plate. Pre-heat the manifold with a oxy-ace torch to about 600F and try to hold it there during welding. After done welding. Peen the weld with the ball end of a ball peen hammer. Wrap in insulation and allow it to cool to room temp before removing the insulation.
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I am not sure what it is though I believe its cast iron. I am hoping that HKS will be able to tell me more. I'll be taking my car into a shop on Monday for them to fix it and they believe that they can get it welded up. I would like to find some that are made from stainless steel however so that this will less likely happen again. Maybe some of you can tell by looking at the parts that they are made of. This is the original for sale thread of the kit I have on my car One and only 370z complete hks demo car twin turbo kit.
Does anyone have experience with getting the manifold crack fixed through welding? As long as its done right will it hold up?
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