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Vacuum wipers

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Old 01-08-2018, 02:33 PM
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Vacuum wipers

Hey guys, just wondering if any one knows proper amount of vacuum that the wipers require for a 55. Was hoping to purchase a little 12 volt vacuum pump to run them but not sure the volume per minute that would be correct for these.

Thanks
 
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Old 01-09-2018, 01:48 PM
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Just add a vacuum tank. I think that I got this one from JEGS.







.
 
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Old 01-09-2018, 02:10 PM
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Originally Posted by petemcl View Post
Just add a vacuum tank. I think that I got this one from JEGS.




.
That'd be the answer to my air horn question in another thread, wouldn't it? https://www.ford-trucks.com/forums/1...lt-system.html
 
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Old 01-09-2018, 04:16 PM
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If I remember right, the Wiperman says he tests rebuilt units at 14 inches of vacuum. A couple years ago I figured out how much volume was required to run the motor. I used the approximate internal dimensions of the motor, frequency, and high school level math to figure demand. I have no idea what I did with my figures or I would share. FWIW, I built a reservoir from four inch PVC pipe that will give me 14 full swipes of the wipers with the engine turned off. My reservoir is either 3 or 4 feet long.
 
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Old 01-09-2018, 05:02 PM
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Originally Posted by abe View Post
That'd be the answer to my air horn question in another thread, wouldn't it? https://www.ford-trucks.com/forums/1...lt-system.html
I don't think so abe. That is a vacuum tank and not made to hold pressure.
 
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Old 01-09-2018, 07:00 PM
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Any junk yard/you pick will have those tanks for a dollar or two. Late sixties through early eighties chevy products are easy to access and remove. They look like a plastic ball.
 
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Old 01-09-2018, 08:12 PM
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Originally Posted by petemcl View Post
I don't think so abe. That is a vacuum tank and not made to hold pressure.
Duh! Oh Boy, Stupid me. Thanks for catching that... They're called AIR horns, not VACUUM horns.
 
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Old 01-09-2018, 08:13 PM
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Originally Posted by abe View Post
Duh! Oh Boy, Stupid me. Thanks for catching that... They're called AIR horns, not VACUUM horns.
Maybe they work like a harmonica?
 
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Old 01-09-2018, 08:14 PM
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Originally Posted by pbsdaddy View Post
Any junk yard/you pick will have those tanks for a dollar or two. Late sixties through early eighties chevy products are easy to access and remove. They look like a plastic ball.
My 57 Chevy had power brakes. The canister looked like a tomato juice tin can painted black.
 
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Old 01-10-2018, 12:32 AM
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Originally Posted by pbsdaddy View Post
Any junk yard/you pick will have those tanks for a dollar or two. Late sixties through early eighties chevy products are easy to access and remove. They look like a plastic ball.
Just make sure that it has a check valve.
 
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Old 01-10-2018, 11:09 AM
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Awesome, thanks guys I will look into this and see if it works out
 
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Old 01-11-2018, 05:53 AM
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Originally Posted by abe View Post
My 57 Chevy had power brakes. The canister looked like a tomato juice tin can painted black.

Yeah, I remember those.
 
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Old 01-11-2018, 11:48 AM
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Originally Posted by abe View Post
Duh! Oh Boy, Stupid me. Thanks for catching that... They're called AIR horns, not VACUUM horns.
Maybe an air brake reservoir would work for you?
 
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Old 01-11-2018, 01:49 PM
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Originally Posted by Stephen67 View Post
Maybe an air brake reservoir would work for you?
Yes, but I'd still need a pump to compress the air. Did you ever see the big Job engines that had a compressor sitting on top of the engine run by a belt off the crank?

I guess I'll give up on this thought. .... Unless I could fill said reservoir at home or at filling stations with an air compressor and blow my horns until I run out then fill it again. Sounds like fun.
 
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Old 01-11-2018, 02:03 PM
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Originally Posted by abe View Post
Yes, but I'd still need a pump to compress the air. Did you ever see the big Job engines that had a compressor sitting on top of the engine run by a belt off the crank?

I guess I'll give up on this thought. .... Unless I could fill said reservoir at home or at filling stations with an air compressor and blow my horns until I run out then fill it again. Sounds like fun.

I worked for UHAUL back in '89-'90 as a Mobile Repair Unit. There were big trucks that had air compressors belt driven off the engine. IIRC they were for the air ride suspensions. Might keep an eye out for BIG ORANGE and WHITE trucks in the salvage yards?
There is a local guy here, he has TRAIN horns under his raised bed. When he pulls the chain you see thousands of people jerk, twist, jump, fall, cuss, and look around! Not gonna lie...I laughed until I cried !


try this:
 

Last edited by Jeff and Nicolle; 01-11-2018 at 02:27 PM. Reason: added link

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