Today was a very frustrating day in the garage. Nothing went my way! First of my MIG was playing up, it seemed to have wire feed issues and was "pulsing" the wire. Not sure what it was, but the tip seemed to be catching the wire, so i replaced that, but the replacement melted! It then melted a second, but the third survived. Good job i bought a 5 pack!
The wire feed issues continued until i ran out of gas! Last time i bought a C02 Argon mix, and it really hasn't lasted very long at all compared to plain C02. After getting some more gas it all seemed to sort itself out. The wire ran smoothly and the C02 made a much nicer weld than to C02 Argon mix.
Now that i was finally underway, i tackled the outer sill. After several trial fits and aligning it to the door and wing i tack welded then plug welded the top section to the inner sill and the footwear side.
I decided to seam weld between the plug welds on the foot well side, it seemed like a good idea and i just thought the plug welds wernt that strong. Some have said that seam welding the sills is a bad idea as they actually act as crumple zones in the event of a crash. My thoughts are its a 36 year old car made when crumple zones wernt even thought of and if i crash it, i want it to stay in one piece. I could be wrong, but i dont intend on finding out!
So with the top of the outer sill firmly in place i need to work out how the bottom of it should be attached. It has a lip that could either be folded around the inner sill and welded, or i could cut it off in order to get clearance to punch holes to plug weld it on. Ive asked a question on the MG BBS to find out what others have done.
Hopefully ill get out again this weekend and make more progress.
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