BTH KC2 magneto - repairing a damaged thread in aluminium

I have a pair of new (made in 1936 but never used) BTH KC2 magnetos for a JAP J99 engine. Both have been serviced and bench test well but one has a damaged thread in the alloy body. I fashion a cost effective (cheap) permanent repair.
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[@allanriches9381]

That was a great repair. I remember doing something similar on a outboard motor once.

[@FlyingForFunTrecanair]

Thanks! It's certainly better than a helicoil and cost nothing to produce.

[@bigc1903]

Wouldn't it have been so much easier to use a Helicoil. They are made in all the standard sizes.

[@FlyingForFunTrecanair]

Of course, but that wouldn't have been half as enjoyable. It would also have meant spending money better spent elsewhere. My repair was ideal.