The aluminum trim panel had almost all the paint missing from the insets. So, first step was to remove what was left. A little light steel wool and lacquer thinner later, it looked like this:
Then the application of masking tape...
...and then the cursing when I realized the heat gun had gone missing. Why was this a problem? Well, aluminum hates paint and likes to shed it. To get “normal” paint to stick, you have to use self-etching primer, which is acid. I would have to mask every. single. little. U-shape. There are over 150 of them. Ha ha, no. The alternative is to use a paint which sticks to aluminum natively.
Something like this:
It gets chemically active when heated, cures very slowly on its own if ever (heat hardens it), and when hot is suited to baking onto metals of all kinds *including aluminum*.
So, anyway, shop heat gun missing, one heat gun borrowed from work and some application in the dark later...
Beginning to remove the applied paint (before heating) with Q-tips and lacquer thinner. More flexible process than masking everything, but almost as tedious.
At any rate, 26 Q-tips later, I’d removed all the paint I didn’t need, and I went over the whole thing with heat - no points lower than minimum 220F. They recommend an oven bake (multiple, actually) of 300F+, but that wasn’t happening on the car. Besides which, the heat gun air was graining the anodizing slightly in places and was supposedly >500F.
I did get something else done on Monday, or Day Of No Heat Gun. See, the oil pressure light was on. That is a Bad Thing, so I pulled the pressure switch and hooked up a gauge like so:
Oil on the horn is from the capillary coming out of the back of the gauge while running. Derp.
With gauge connected, I had 55psi at idle.
So, no issues there, then.
Anyway, the lesson to learn here is that if you have an aluminum grill or other trim with black accenting like on many 60s cars, just use grill (propane variety) paint. It’s chemically similar to gun paint, won’t bake off in the sun, and will work fine. There are also trim paints that would stick, but they probably don’t stay soft as long, which is a bonus for this kind of thing.