The valve was locked up tight. I took it to work and soaked it all morning in an ultrasonic heat bath which loosened up all the old fuel. After this the valve came apart fine. Cleaned it up, polished the valve, and reassembled.
I’m not sure why I thought the original color was blue except that was the color on most of the surfaces under the red. I found this on the Stinson website:
I wonder where all the blue originated……this serial number is 2391.
Finishing up some last minute sanding and sand blasting before taking it to the painters on Thursday. Once there I will wipe it clean and mask a few things off.