So the heli-coil got ripped out.....

Any chance of overdrilling a bit deeper into the housing, redrilling, re tap, and use a stud? What's it on?

I've done this before to repair and re-bush pneumatic cylinders that got worn oblong from constant actuation. Really easy to do, fill it, machined it down all nicey nice, and re-drilled the holes. A lot easier than doing it with the TIG.



http://www.durafix.com

I've done similar with JB weld before but this is faster/stronger and can take a bit more heat. Repair is damn near undetectable if you want it to be.

Try a time-sert. They're a bit better than the typical heli-coil as its a solid insert. They also make oversize ones which may fit your situation.

http://www.timesert.com/

You can purchase a kit that has an over-sized Heli-Coil for your application.

You will need to drill and tap for the over-sized heli-coil and then insert the regular heli-coil into that.

You mentioned the heli-coil ripped out, were the threads damaged?

I think you need to solve the problem.
The threads got ripped out, then the repair got ripped out. Fixing it again isn't solving the problem of why it happens in the first place.