09-02-2019, 12:32 PM
My 1931 saloon has an SU with a Trico vacuum wiper motor. In general use turning on the wiper does nothing at all. However, when you get to the point that you can't see a thing, if you take your foot off the throttle for a split second the wiper will flick back and all is well. In my defence I would point out that on one of my Coast to Coast Runs, I was able to continue motoring when the modern cars had been forced to stop by the severity of the rain. It was during that run that I developed the technique of driving with a wash leather in my hand. There was so much water getting around the windscreen that every few hundred yards I was leathering the inside of the screen, opening the drivers door window, wringing out the leather, closing the window, repeat as necessary. The cubby holes either side of the dashboard fill with water and are remarkably watertight, when you turn left the water in the RHS one pours out onto your knee. Driving an Austin 7 in heavy rain is quite entertaining!