Apologies if this is a little off-topic, but realising that there are some parts of the floor/sills that need some welding (I need a patch where the safely belt bolt goes and part of the wheel arch/sill) I was wondering what welding setups people were using here and what guage steel they were using for the floor and sill patches.
I have an old sealey mighty-mig that has .8mm flux cored wire - is this any good or do I need .6mm and/or Argon/CO2 mix?
Thanks

 

I have a Clarke welder which I used to use gasless with fluxed core wire. I converted it to gas and now use 0.6mm with argon/Co2 gas mix from Hobbyweld and the difference is amazing. Smooth welds are now easily achieved!

You may find this website helpful, it is an excellent tutorial: Welding - The DIY Guide

 

I'm not sure about the floor thickness, it could be different to the body panels.

I used this machine purchased second hand and converted it to work on gas (Hobyweld CO2/Argon mix) and 0.6mm wire.

Its close to impossible to get a good weld on thin steel with flux cored wire.

 

That's exactly the same welder as mine!

 

I used 1.5 and 2mm thick steel for the various plates.
Best to practice first and remember when welding thin sheet, attempts at continuous welding just blows holes and if underneath, globules of hot steel drop down and tend to splatter and burn. Ouch!

I use a Lincoln welder with 0.8 wire. A bit of overkill on thin sheet but works OK on lowest setting.

 

I too have a Clark mig very much like the ones above and only used the flux cored wire, and wondered why I always got pigeon poo welds, now I know. Time to invest in the gas, I would be a very occasional user, any advice as to which route to take?

 

The Hobbyweld CO2/Argon mix has got to be the lowest cost entry route for occasional users.


Welcome To Hobbyweld The Home Of Rent Free Welding Gas Cylinders

 

I would agree with RaceDiagnostics on the Hobbyweld Co2/Argon mix. You will be amazed at the difference. Also, have a look at that tutorial I posted a link to in an earlier response.