Roll Down Rear Windows-Weatherstripping?

[expavr]

How are the roll down rear windows made watertight? Photos of your solution would be helpful.

[Lawson Cox]

What kind of vehicle are you working on. Most roll down windows are not watertight. The water runs down to the bottom of the glass into the door or quarter panel and runs out of holes in the bottom.

[expavr]

Lawson
I should have been clearer in what I'm doing. I have a 33 3 window coupe which has a roll down back window (back of the cab) so that someone in the rumble seat could talk with the driver or passenger.

[DavidG]

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Your coupe's rear window opening should have a sponge rubber seal along the top and vertical felt channels on either side. These provide a pretty good seal. There is a lip on the rubber channel that the glass is inserted into when both are inserted into the steel channel on the lower edge of the glass. This lip seals against the inside of the window opening in the sheet metal, but it could not be described as watertight. That's why there is (or was originally) a steel pan beneath the rear window assembly to catch the water and drain it off via a fabric conduit to a hole in the floor on the right side of the rumble compartment just inboard of the chassis frame.

The photo of the drain pan and conduit to the floor is of a '32 3-window coupe, but the '33-'34 coupes have a similar arrangement.