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756 water intake manifold?


pt756
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I would not weld it. Chased that problem on my 826. I don't know what they used in Germany to cast it but it has a lot of impurities in it. The heat from welding it can warp the sealing surface to the point it won't seal. 

I was finally forced to find a replacement for the 826. 

Be very careful, or I just had bad luck. 

Erich

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Had to find a good used one here a few months ago for a 786 after one of the mounting ears cracked & broke off.  NOS ones aren't an option here in the states anymore.

During my search online, I came across an image on the internet, showed a new, billet-machined water manifold for a German engine.  The post was from overseas, a few years old, but nonetheless, I was intrigued about it.  Looked like a heavy-duty water manifold that definitely wouldn't break or leak ever again!

Coolant-Manifold-3132435r1-D310-D358-DT358-DT402.jpg

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Sounds like you've nothing to lose. I'll bet money it would warp somewhat but you could always have it surfaced. 

If it's just a small crack what about like a silicon bronze or aluminum bronze??? By not having to lay the heat to it you might be better off. I'm not a welder I'm asking FYI. 

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