Mazda Mx5 NC Mk3 Miata Sill hole rust repair

[@peterludlow9847]

Brilliant video. Would love to see more on your welder, owning a mx5 think need to learn lol. Don't you run a continuous weld is it just a continuous run of spot welds. Cheers

[@jackos5s]

Thank you for the comment Peter, the reason for the spot welds is because the Mazda steel is so thin. If you did a continuous weld, the weld will become too hot and blow out the steel, doing spot welds keeps it cool and “hopefully” stops blow through.

[@km_youtube23]

My nc just failed MOT on same sill rust. I was wondering about rust sealer whether it disguises my crappy weld for the MOT tester or not, think I'll spray some on now. I've seen others saying 130a for the flux mig welding but yours seems around 35a? Mine only goes down to 35 and up to 200... Welding is bloody confusing

[@jackos5s]

I’ll double check, but mine worked a treat it was around £200 from Amazon, I borrowed a “proper” mig welder from a welder pall of mine and it was just too powerful, it just blow out the Mazdas steel work because it’s so thin, and that was on the lowest Amp

[@WalkinSalmon]

problem is - you showed us inside the sill - and you can see its rusting from the inside out - having not dealt with it , it will just eat its way out soon enough - your plate at the end is great but you have just stuck a lid on it. You needed to attack more of the sill in my opinion

[@jackos5s]

Correct! It needs a full new inner and outer wing. That’s a future video, this one was just to get it through it’s MOT for the summer👍👍