Just when you're sure you've done all the rust repairs...not quite. I just put the passenger door on the stand to start prepping the exterior for paint and I noticed that there were quite a few little mounds of rust where the moulding had been that divides the lower colour from the upper one and I thought "uh-oh, that's worse than I thought it was". Sure enough I sanded away the paint and there was deep pitting along the length of the door:
After sandblasting the pits I put a scratch awl in some of the deeper ones and gave it a smack with the palm of my hand and it went partway through so I knew I couldn't just bondo over it, it had to be repaired. I had already prepped the edges of the door for paint and I sure didn't want to cut a 4" by 3' hole and try and do all that welding without warping a pretty flat panel it so I sandblasted the pits, took the mig and zapped the deepest ones spot by spot:
I ground down the welds and to my relief everything looked fine. I took the 7" angle sander and started removing paint. I got to a spot on the lower edge of the door and for some reason the paint wasn't cutting. After sitting there for a minute or so I suddenly noticed a spot to the left that was glowing red and realized I was tilting the sander that way and that's why the paint in the centre wasn't cutting. I stopped sanding and looked at the spot and noticed a crease about an inch long and thought "That's not good". I took the scratch awl to it and gave it a smack and sure enough it went through like tin-foil. So it was back to the welder and after several minutes of making short bursts I had a bumpy puddle about somewhere between the size of a quarter and a loonie. I ground that down and it looked pretty good and then I noticed a pretty big warp in that part of the door, I guess I didn't weld slowly enough to prevent heat build up. So then it was hammer and dolly, hammer and dolly for a fair while until I felt it was close enough that body fill should take most of the ripples out without being too thick.
Now I've got to prep the hood for paint, unfortunately there's a number of dents in it I hadn't noticed before so hopefully I can get those close enough so that very little body fill is required as if there's too much it'll crack from the opening and closing and vibrations while driving. Prepping the underside of the hood is going to be pretty slow going too as its all irregular surfaces so I can't use power tools and I'll have to sand it by hand.