6cm turbine housing repair with TIG question

[zac83]

Hey guys, I've got a few 14b/13b turbine housings sitting around in various states of disrepair. they all have cracked WG flapper seats and a crack between the impeller inlet and the end of the impeller vane where it flushes with the wheel. Does anyone have any experience TIG'n these back into shape? I'm looking for an idea of what filler rod would work best, I could experiment but figured someone might have already dabbled with this and had figured out the best rod already. I'll put together a product of this repair when complete.

V/r
Zane

 

[Gamble97]

Cast = nickel rod.
Preheating and slow cooling is also important.

 

[zac83]

yeah, i was thinking about putting the housings in the oven to preheat. Guess we'll see how it turns in sometime this week.