P45: this reel is good, the .6mm we've got has corroded in places, I'm hoping I can unravel it to good wire as I might need to try out .6 on this metal.
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Before I left the unit earlier today I did get the welder to actually weld, it's been a fairly trying day for me, not been in a particularly positive headspace. I did a few practice runs on some scrap and was getting some tolerable, if not pretty, bits of weld. I'm going to practice more on some more scrap before I tackle anything on the car but I'm feeling a bit more confident.
Fitting a new tip and shroud and setting the welder to 'factory' settings helped immensely with the quality of the weld it now gives me. The issue with the wire feed was cured by unfastening it from the unit and letting it untwist itself, I now get a lovely smooth continuous feed of wire. I do think I'm moving too fast with the torch, a habit from stick welding thin stuff I think, so I've got to get the feel for it again. I feel very out of practice, which probably isn't much of a surprise as it's got to be about two years since I last used a MIG properly, but it'll come back to me.
On the reverse, it looks a lot more like there's some penetration happening now.
After clearing my head by getting away from the unit for an hour I headed back and was greeted with an Alfa I could get excited about, the pearlescent purple on this 2000 GTV made me rethink the purple I wanted on the Princess all over again, combining it with that biscuit-and-brown cloth and vinyl interior was just perfect. Not one of JMP's Alfas this time around, but the chap that brought it over does mainly fibreglass work for us. This one was all steel though, and looked superb.
This next picture is slightly more upsetting viewing. I didn't want to get on with welding anything on the car until I knew I could lay a reliably okay weld, that requires me to have a clearer head and the ability to be a bit more patient with myself. Instead I had a bit of a think and decided to cut off the bad bit of outer arch and the back end of the outer sill to see a bit better what I was dealing with.
That's also when I found out that this is a replacement sill. The top edge has a spot of weld once every 3" or so and then a skim of very hard filler, I'm pretty sure that's wrong and it should be a seam weld along the top edge. Other than that, the fitting of it is pretty good, but with no rust treatment applied behind and a surprisingly large amount of crud in the trailing edge I begin to understand much better why this has rotted out like it has.
It's more solid than I expected inside. Much of the metal has surface corrosion but it's only the very lower edge that's gone thin and frilly... apart from the closing panel which is made up of two layers of badly fitting metal that didn't seem to be welded in, just fibreglassed in place.
I removed the floor patch earlier today and I might do the inner sill ahead of the floor this time around.
At this point I got very scared. I knew it would be a big job but all at once this felt complicated and confusing and scary. I sat and looked at it and poked it and worried for a good half hour before I gave myself a metaphorical slap and did the only sensible thing I could think of and covered the whole lot in weld through primer so I could properly see beyond the surface rust, the rot and the missing metal. I don't know how sensible an idea this was in all honesty, but it did help me figure out what to do next.
Out with the gaffer tape, I 'rebuilt' the missing bits to approximately where they needed to be so I could figure out how scary a job it really was. By breaking it down into smaller chunks the whole thing became less scary. Pulling on some tailoring experience I reminded myself that this was nothing compared to a lapelled double-breasted waistcoat with four pockets and I've managed to make those before.
I cut some more metal out of the floor, in one area I'd been a little too cautious with removing material and it was thin on closer inspection. The only bit I'm not sure of is that strengthening beam thing, I'm thinking it's more sensible to drill out the spot welds and remove it complete so I can remove the holed floor underneath it, but is the norm just to cut through it and reweld afterwards? Your advice welcome here.
I felt more comfortable and got the angle grinder out, remembering to pay attention to how easily the cutting disc went through the metal. If it was too easy I'd cut more until there was a good amount of resistance and that took me back to full thickness metal. Surprisingly little needed to come off.
The last job I did was to make two cardboard templates for the floor and inner sill and bring the spare bonnet in which has knackered hinge points. The bonnet really isn't worth repairing but it is an invaluable source of metal of comparable thickness to what the car is made of.
Tomorrow I'm not sure what I'm doing, I may have a crack at the welding after a bit of practice off the car, and I may just make more panels and cut more rot out. This is probably the first time in a while that my confidence is a little shaky about DIYing a job, but I am a jack of all trades so it's likely I can get this done to a decent standard before too much longer.