Re: 1956 3100 build
I have noticed that before when tacking, so I Googled it.
Here you go
Do magnets affect welding?
When using magnets to hold parts for tack-welding, keep the magnets away (at least 6'' )from the spot you're welding. Magnets make a strong field that disrupts the arc. Welding close to a magnet can be very difficult or impossible.
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