The way this mechanism works is the handle moves first the cup only so that the latch can move out of the way of the window. Then as the 4 springs come into coil bind the cam then moves to rotate the vent window. The 4 pins act like a clutch to move the cam with the cup and springs.
On removal of the vent window assembly you will find this cap. Under this cap is the “cam” that holds the vent window in place. Mine was held on by two rivets.
On removal you will have 4 pins and 4 small springs which will likely fall out. The cam and a brass piece that acts as a bearing and holds the springs and pins. Inside the cap there is a steel shim that the pins ride on.
To remove the vent window to replace the weatherstrip etc, the cam has to be removed. It is a press on with splines that engage the shaft of the window. Carefully lift off, may require hammer and drift pin to push the shaft out.
When done you will have this 4 finger cup. Clean all the parts.
To reassemble, have the vent window in the closed and locked position and the handle in the locked position as well.
Reinstall the cam with the drive ends touching the legs of the cup. Use small taps to settle the cam into full engagement of the splines. See photo.
Use White Lithium grease to hold the pins and springs in place. See photo.
Now reinstall the cap with the steel bearing also lubricated with Lithium grease.
The tricky part is getting the cap on, which loosing a pin or spring can easily happen. The springs are more likely to drop down. I used a small flat screwdriver blade to carefully push the loose end of the springs back in line and the cap settled into place. Use rivets to finish the install of the cap.
Hope this is a help to others. I suspect that the Airflows are the same but no idea if so.
Pierre
