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I don't know, I suppose. But I wouldn't go overboard on it. Just get the big chunks out. Then you will have seals at both ends

I wheeled mine today :smiley-taunt002:

The only thing I would say about that is that the common wire in wire feeds with gas is a hard wire. So any surface welded with that will last longer than the original

I have used helicoils successfully. If you want use some locktite on the coil and then once dry use antisieze on the bolt threads. You won't have any trouble