The Ford Barn

mrraford · 06-26-2025, 10:53 AM

I've been working on several vacuum wipers recently. Time to give them a test and tweak. Anybody have a suggestion for a cost effective vacuum source at my work bench?

Canton_Model_A's · 06-26-2025, 11:11 AM

you could get a vacuum pump from Hazard Freight. That might work

Kurt in NJ · 06-26-2025, 01:08 PM

if you have a air compressor and can tolerate the noise a venturi vacuum pump is cost effective to buy new.
yYou could go to the you pull it junkyard and search the cars for booster pump.
some cars mostly european had a small vacuum pump for cruise control.
the cheapest is a piece of hose to suck on with your mouth.
And of course running gasoline engine usually can supply vacuum.
And the hand vacuum pumps.
A distributor machine usually has a adjustable vacuum pump too.

nkaminar · 06-26-2025, 04:52 PM

I use my vacuum pump that I bought for casting work. Search on Google or Amazon to find a low cost one.

Big hammer · 06-26-2025, 08:15 PM

How much vacuum would a shop vac create ? Most everyone has one !

2speed · 06-26-2025, 08:38 PM

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Could you not just run a rubber hose from the manifold and hold the wiper in your hand while the car is running?

J Franklin · 06-26-2025, 11:23 PM

Rubber hose to mouth?

katy · 06-27-2025, 10:35 AM

The intake on an air compressor might work, would probably need a means to regulate it.

nkaminar · 06-27-2025, 01:00 PM

If you have a vacuum gauge you can test all the ideas that people have come up with. I don't think a mouth is a good tool for this application.

rotorwrench · 06-27-2025, 07:08 PM

The 12-volt pumps for power brake vacuum are generally equivalent to the manifold air pressure of an automobile engine. They shouldn't break the bank on price. A mighty vacuum hand pump might work but your hand would get tired.

John · 06-27-2025, 08:51 PM

I have used one of the hand vacuum pumps for checking automotive vacuum controls. Just pump away and slowly the wiper will stroke and return.

John

06-26-2025, 10:53 AM	#1
mrraford Senior Member Join Date: Jul 2012 Posts: 196	Testing Vacuum wipers at the work bench I've been working on several vacuum wipers recently. Time to give them a test and tweak. Anybody have a suggestion for a cost effective vacuum source at my work bench?

06-26-2025, 11:11 AM	#2
Canton_Model_A's Senior Member Join Date: Sep 2022 Location: Canton, Michigan Posts: 321	Re: Testing Vacuum wipers at the work bench you could get a vacuum pump from Hazard Freight. That might work __________________ --------------------------------------- 1929 Model A Tudor - "Darla" '29 Model A: Old enough to start with a crank, young enough to steal the show! "Stay away from negative people, they have a problem for every solution" Model A Ford Club of America Model A Restorers Club Motor City A's Club

06-26-2025, 01:08 PM	#3
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,553	Re: Testing Vacuum wipers at the work bench if you have a air compressor and can tolerate the noise a venturi vacuum pump is cost effective to buy new. yYou could go to the you pull it junkyard and search the cars for booster pump. some cars mostly european had a small vacuum pump for cruise control. the cheapest is a piece of hose to suck on with your mouth. And of course running gasoline engine usually can supply vacuum. And the hand vacuum pumps. A distributor machine usually has a adjustable vacuum pump too.

06-26-2025, 04:52 PM	#4
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 5,855	Re: Testing Vacuum wipers at the work bench I use my vacuum pump that I bought for casting work. Search on Google or Amazon to find a low cost one. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

06-26-2025, 08:15 PM	#5
Big hammer Senior Member Join Date: Jun 2014 Location: Land of Lincoln Posts: 3,430	Re: Testing Vacuum wipers at the work bench How much vacuum would a shop vac create ? Most everyone has one ! __________________ Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done

06-26-2025, 08:38 PM	#6
2speed Senior Member Join Date: Apr 2022 Posts: 105	Re: Testing Vacuum wipers at the work bench Sponsored Links (Register now to hide all advertisements) Could you not just run a rubber hose from the manifold and hold the wiper in your hand while the car is running?

06-26-2025, 11:23 PM	#7
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 6,370	Re: Testing Vacuum wipers at the work bench Rubber hose to mouth?

06-27-2025, 10:35 AM	#8
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,712	Re: Testing Vacuum wipers at the work bench The intake on an air compressor might work, would probably need a means to regulate it. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

06-27-2025, 01:00 PM	#9
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 5,855	Re: Testing Vacuum wipers at the work bench If you have a vacuum gauge you can test all the ideas that people have come up with. I don't think a mouth is a good tool for this application. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

06-27-2025, 07:08 PM	#10
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 17,410	Re: Testing Vacuum wipers at the work bench The 12-volt pumps for power brake vacuum are generally equivalent to the manifold air pressure of an automobile engine. They shouldn't break the bank on price. A mighty vacuum hand pump might work but your hand would get tired.

06-27-2025, 08:51 PM	#11
John Senior Member Join Date: May 2010 Location: Richmond, VA Posts: 214	Re: Testing Vacuum wipers at the work bench I have used one of the hand vacuum pumps for checking automotive vacuum controls. Just pump away and slowly the wiper will stroke and return. John