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Wiper Woes
Question: I just bought a 1941 Oldsmobile that has a problem with the windshield wipers. They slow down every time I step on the gas, especially if I'm going up a hill. Is this a common problem, and is there a fix?
Answer: Yes, and yes. This is a common problem, and yes there is a fix. Actually, it's not really a problem. It's the way that the system is designed, and the culprit is your windshield wiper motor which is powered by engine vacuum rather than electricity. All car engines produce vacuum as they operate, and this vacuum is utilized to operate power brake boosters, heater and air-conditioner vents, and other accessories. Back in 1941 it was used to operate the windshield wiper motor. The problem is that when the accelerator is depressed, engine vacuum drops dramatically and these vacuum operated wiper motors slow down, or even stop. I can only imagine what it was like driving up and down steep, winding mountain roads in the dark of night in the rain back in 1941.
The solution is to replace your vacuum operated wiper motor with an electrically operated one. There are conversion kits made that come complete with the wiring and switch for about $200. The kit can be installed in about two hours. If your car still retains its original electrical system make sure to specify that you need a motor that will operate on 6 volts.
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Steve was born in Brooklyn, New York in 1957. He grew up in a time and place where cars were worshipped, and none more so than the "American Muscle Car," although this was a phrase that wasn't coined until decades later.By the age of twelve he was repairing just about anything with an engine.
Recognizing Steve's early predilection for speed, his father strongly "suggested" a 1967 Lincoln Continental as Steve's first car, believing that his son would be best protected in a "tank." But the "need for speed" prevailed and the Lincoln was followed shortly by a 1970 Mustang, a 1964 LeMans and a memorable yellow 1970 Cuda.
Over one hundred cars have since followed.
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Steve Linden is a recognized expert in antique, classic and collectible vehicles. He offers a wide range of services to the classic car community.
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Steve Linden