Repair Exhaust manifold?

[scenarioL113]

Are wet exhaust manifold repairable?

I have one that has a crack on the top that was only seen when it was boiled out at the machine shop.

My intention is to throw it away but before I do I was wondering if anyone has successfully repaired one.

It is a B-series cummins 4 cylinder

[Harry Babb]

My advise is to replace it......

Harry

[scot]

Replace it, your engine is worth much more than 1 manifold. The manifold, riser or elbow is the wrong place to save a buck. If they leak they can send water into your cylinders....klunk.

[Harry Babb]

I thought about it a little more.....make sure that it is indeed a crack and not just a surface defect in the casting.

It will not hurt anything to grind a little and see if the "Crack" goes away. In other castings I have seen surface defects that may look like a crack...but were not.....you can also Dye Pen test it....a lot of welding shops and machine shops have the dye pen test kit.....not expensive at all to have it Dye checked

Harry