As for the epoxy paste, I may consider that, but I like the idea of repairing things properly. The supercharger and wheelcase I have are otherwise functional, and if the cost is not brutal, I’d consider proper welding.
Properly for what? A cracked case/damaged part can never be airworthy again.
Cases are usually cast Al, and welding will change the structure at the weld. On top of that impurities will be introduced that will promote corrosive action.
What’s more if you do have serviceable parts see if you can trade them in for more unservicable parts to assemble a good looking display engine (and the usable parts will live on a flying airplane).
Of course you could go the slightly more pricey path and make a functioning engine.
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