Vacuum wiper motor maintenance. Vacuum wiper motor rebuild kits?

Tech Tips Vacuum Wiper Motors Update

Vacuum wiper motor maintenance

When you are ready to remove the last screw hold the unit together as you remove it. Lightly grease the white slider valve and install it. Unfortunately, I had already modified the motor shaft and mounted a hub before I took this photo. I'm sure there's a special driver but needle nose pliers work just fine. Your only recourse is to lift off the throttle long enough for the wipers to make a couple of passes and restore your vision, then it's back on the gas to keep from being run over by the cars behind you—and the process begins over.

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Replacing Vacuum Windshield Wipers With Electric

Vacuum wiper motor maintenance

Also, because the function of the windshield wipers depended on the amount of vacuum created in the engine, the wipers would stop working entirely when the car was in a situation that lowered the pressure, such as when the driver was trying to navigate up a steep hill. Thanks for taking the time to post them for us to enjoy. Cleaned out and used Ultra Blue gasket and new grease. I had a sick kitty-cat awhile back, and got some hypodermics from the vet--I'll use one. Wiper drives attach to the stock mounting brackets. Use the two course threaded screws.

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Ford Windshield Wiper Motor Repair Kit

Vacuum wiper motor maintenance

Does anyone know where I can find a rebuild kit for these things? Let the motor sit for a couple days with the Dexron fluid inside it will softewn both hardened grease and also soften the seals on the paddle. I believe the Mac's kit is for the basic Model A--early V8 type, smaller than your '37. Even with a dual diaphragm fuel pump vacuum wipers were marginal at best, and in our particular case a lumpy cammed, dual-quad equipped 429 fed by an electric fuel pump is in the engine bay so there was no source of suction other than the intake manifold. Here is what the screw heads look like on all of the screws that go into the motor body. If you've ever looked at how steam engines work, it's pretty much the same thing except these suck while steam engines blow sorry, couldn't resist! Depending on their condition you might bring them back to life. Vacuum windshield wipers were not able to maintain a constant, regular speed: their speed corresponded directly with the speed of the engine.

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Vacuum Wiper Motor Rebuild

Vacuum wiper motor maintenance

Ones an early 40's and the other a 56 with the fuel pump assist. By the way, a small Cresecent wrench works great to remove the little flat-headed screws and I also used needle nose pliers too. They were common features on new cars from the late 1920s and used the vacuum created by the car's engine to operate. The flipper inside my wiper is shot. You should also replace the hose to the unit at this time.

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Replacing Vacuum Windshield Wipers With Electric

Vacuum wiper motor maintenance

The vac motor wipers have a single output pivot shaft and a cable system under the dash to transfer the power to the two wiper mount pivot shafts. To accomplish this you should follow the instructions in the shop manual or fly by the seat of your pants if you have the experience. My first step was to cut off the wiper arm mount from the shaft end. Watch when you shut it off by the switch on the unit that it travels all the way to one end of the stroke before quitting. This motor has a plastic bearing between the shaft a. On Americans, there is a clip from the cowl to hood seal that going into the mounting plate.

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Vacuum wiper motor repair

Vacuum wiper motor maintenance

If you choose to make this conversion, I suggest you read through all of the steps before starting. Also, these castings are fairly fragile so make sure that you don't drop them or set anything heavy on them. After a couple days of this, try the motor with it hooked up to any intake manifold vaccuum source it need not be fully installed with the engine running. Now - wipe all the grease off of everything and wash every piece very carefully using some of the carb or brake cleaner. I just cleaned and relubed this unit and took some pics. Once it gets going unstuck on the left side it runs great! Reconnecting the hose and turning on the wiper motor with the engine running would circulate the brake fluid inside of the vacuum motor and soften the leathers inside of the vacuum motor. I have a Welch vacuum pump used for evacuating high vac systems that will pump down to 10-3rd or about.

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