1.6 Exhaust Manfold Crack

[Magenta Sunset]

Hi guys,

Friend of mine has what the garage described as "hairline cracks" in the exhaust manifold. What are these manifolds made out of? Are they suitable for welding? Having trouble finding replacements, can only find GTi-6 manfolds.

Cheers

recalled this from watching Wheeler Dealers -
http://stitchweld.co.uk/

Stitch welding is not for cast pipes. it will not work because of the profile. Stitch is expensive to do, and very time consuming. I should know, the amount of times i stitched up motor casings.  (electric motors from before the land of time.....) 

Cast is weldable, but as previously mentioned, it needs to be hot to accept the weld or you will crack it again. Any half decent welder will be able to do the work quite quickly, as long as the crack is visible, and easy to get to. you will be lucky if the cracks are on the top or front of the manifold, but if they are underneath, you will need to brace the manifold, and bolt it to something flat to prevent it warping. Which is always a risk if not braced and bolted.

cool, I've learned something new