I was replacing all the seals on the Mark II I bought. I was going to replace the glass seal as well. When taking it apart, I noticed that there is a gap between the door, and the outter casting that holds the glass in place. I know the secondary air is supposed to pass through there, but I put a straight edge on the bottom of the door itself, and it is not straight. I have about 3/32 inch gap in the center between the door and the cast piece because of this warping. It is pretty tight at the ends.
Do I need a new door? I hope not $$$ !
Could some Mark owner out there take a peek at the bottom of their door and tell me what the gap is? If its uniform?
I would expect if to be fairly close and even all the way across.