After sanding and repainting, I though I'd just wipe down the gasket. Unfortunately, the dirt was more embedded than I realized, so the gasket had to be removed. This is the point where one thing led to another...
First the interior panel had to come off—
—which revealed the insulation. It looked fine, except for that lower left corner:
Which led me to look more closely at the bottom bracket:
|gasket pulled away from bottom bracket, revealing rust and corrosion|
|bottom bracket removed|
Surprise: more rust.
Which meant more (rust-inhibiting) spray paint:
And new insulation. One consolation: the new giant scissors were perfect for cutting the batts.
And the modern paper-backed batts went in easily:
(Note for next time: don't leave the insulation unattended.)
The sanded and repainted bottom bracket:
The gasket was soaked and scrubbed:
And then the whole thing went back together:
In this photo, the butter dish still needs to be reinserted and wired, and blue tape is holding the botom gasket on while the adhesive sets, but it is mostly together. I hope. It still has to be moved, plugged in, and tested. Part 3 of this project may be awhile in coming.