The worst rust on this truck, besides the stuff I cleaned up on the roof, was in the passenger footwell. As a result of the same leaks that doomed the cowl and heater box, water got in and sat on the metal under the passenger’s floormat, collecting mainly at the diagonal seam from the tunnel. At some point the PO had fixed the same issue on the driver’s side by hacking a hole out of the floor and welding a crude patch over top, then covering it with some kind of bizarre rubberized material.
Knowing my gas tank was mostly empty, and because it’s only hooked up to the gas feed, I figured this was the best time to attack the rust. I jacked up the passenger side of the truck at three points on the frame and secured it with jackstands. The tank is held in place by a pair of clever straps that secure to two captive bolts on the underside of the body, and one came free easily, while the other captive bolt broke off from its weld. After I cut that loose and disconnected the hoses up front, the tank dropped out easily. I was surprised to find an access hole directly above the sender unit, which should be very helpful down the road. I was shocked to find I’d dropped the tank in under an hour.
I pulled the tank aside and looked over the floor situation. Starting with the area at the front, I cut out the rust that looked the worst, making a rough rectangle with a triangle-shaped section following the seam at the upper left. The body mount and frame mount underneath both looked like they were in great shape, and the metal underneath everything was in factory-fresh condition. I hated to cut a lot of it out, but I wanted to get as much good stuff in there as possible.
When I’d squared off and cleaned up the edges, I cut some cardboard out and carefully made a template to work from. This took some time, because the open area was deceivingly complex in shape.
When I had that sorted, I pulled a sheet of 18 ga. metal from my stash and cut the pattern out. With a bunch of trimming and fitting, I had it ready to go in by about 4PM. Being careful to take my time, I tacked the edges in slowly using butt welds. The section along the rocker got welded from the underside where the good metal was; I didn’t want to cut the raised section out because I can’t replicate that, so I’m taking a chance and keeping it. All of this is going to be treated as heavily as possible with rust encapsulator/undercoating, so I’m hoping I can halt any new rust from forming in the future.
By 5PM it was getting dark so I shut things down after a preliminary sweep with the flap disc. I’m kind of shocked at how much I was able to get done in one day’s time; the process went really smoothly and I’m a lot more confident in my basic fabrication skills, as well as welding.
The other quick thing I tackled was to weld a second set of tabs in on the seat lockbox so that I can drill holes and mount that in permanently. I’m going to clean up the chipped rattle-can paint and hit it with the clear coat just to protect it a little better, but I’d like to finish that up in preparation for the seats later this winter.
One thing I need to upgrade is my safety glass situation. Running the cutting wheel early in the day with my safety glasses on, I got a couple small pieces of debris in my right eye for the second week in a row. After fishing that stuff out I found a pair of old goggles and wore those for the rest of the day, but there’s got to be a better solution. If I’m going to be grinding this much I need a full-coverage set of prescription goggles.
The other thing that was nice was that my $1 yard sale iPod Nano has a built-in radio receiver, which meant I was able to listen to the Ravens game wearing goggles, ear protection, a dust mask, and my glasses on.
