Welding Cast Iron? Repairable...?

[SanJosesSteve]

So you may have heard me screaming in my driveway Saturday as I snapped this thing off. I bet it can't but I'm going to ask the question anyway. Can this be welded back? It sees some force when re-installing. I bet it would just snap back off. Anyone ever repair one?

I got in this boat as I had lost one of the 4 big oval clamp washers. (Or whatever it's called.) Was able to get another locally but it was a slightly different shape. I wasn't seeing the gasket getting squished down as I tightened it......so I kept going. "SNAP!" Followed by a quite animated "Happy Dance" and some colorful language.

Anyone have luck welding theses back on? Thanks, -Steve