My meter inside the cabin was locked up and wouldn't turn and I had to take it apart to get it working again. I took a few pictures along the way and a video for those interested in what is inside there. Also, the one I'm assembling is a junk unit I have as a spare, mine isn't in that bad of shape :-)
Here is the complete gallery that walks through assembling the unit again so you can see each step.
https://gshutter.smugmug.com/Airplanes/My-Planes/Commander-680Fp/Oxygen-Meterglenn
