24-05-2020, 12:02 PM
The Big Seven sunroof (same applies to the last of the Ruby saloons, 1938-39) is a pressed steel panel and it carries quite a serious compound curvature. The roof should have Mazak rails on both sides and two securing hand screws on a wooden rail at the front. It uses the Mazak rails as a guide; I assume that the inside of the panel had rubber pads to allow it to slide over the back panel and not scratch the paint as there are no external rails as with the earlier sunroof. I always found, both with my late (1939) Ruby and the Big Seven that I had later, that the roof could end up "Skewed" and would be hard to close. I think it needed to be opened and then clamped open with both screws.
The Mazak rails should have holes in them at the rear where a rubber bung was inserted to stop the roof being pushed to the very back.
The roof panel should be painted body colour but I am unsure how the headlining was fixed; it might have been just glued in over a padded layer I suppose.
The Mazak rails should have holes in them at the rear where a rubber bung was inserted to stop the roof being pushed to the very back.
The roof panel should be painted body colour but I am unsure how the headlining was fixed; it might have been just glued in over a padded layer I suppose.