Weaver Antique Floor Jack what is it, repair it?

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ivaldes1
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Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Fri Jul 29, 2022 5:53 pm

I bought this long antique I think floor jack at an estate sale. I can't seem to make it work. I don't know how to make it work. It does not have any brand or markings on it that I can see. What is it? How can I make it work?
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Last edited by ivaldes1 on Sat Aug 13, 2022 8:34 pm, edited 1 time in total.

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perry kete
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Re: Long Antique Floor Jack what is it, repair it?

Post by perry kete » Fri Jul 29, 2022 6:04 pm

It looks like most others I've seen and I have three myself. It operates by hydraulic cylinder that needs to be opened to let it drop and closed to make it rise. As long as it has fluid in the cylinder you should close a small valve and by pumping the handle it should engage the hydraulic cylinder and operate. When you want to let it down you open the valve and it releases the pressure. Yours may pump up using the peddle by the handle or that may open and close the valve.
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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sat Jul 30, 2022 1:09 am

Thanks, the pedal makes the lift go up a little but then it sinks back down. The large handle seems to only be for moving it around. There is a lever on the side of the handle in picture 3 that actuates something near the pedal. The lift sinks back down no matter what position the lever on the side of the handle is in.


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Re: Long Antique Floor Jack what is it, repair it?

Post by TXGOAT2 » Sat Jul 30, 2022 8:15 am

It's almost certainly repairable. It will have seals and other soft parts that are probably worn or decayed. These parts are most likely of common sizes that can be obtained today. Mechanical issues, if any, can can be repaired. There are businesses that specialize in hydraulic jack parts and repairs. Those jacks are very useful. When fitted with a proper lifting saddle, the operator can run the jack under either axle of most cars and light trucks and quickly lift either end of the vehicle without getting under it or doing any acrobatics. As with any jack, jack stands should be used to support the car after it is lifted. Never lift a Model T by the center of either axle, no matter what type of jack you are using.


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Re: Long Antique Floor Jack what is it, repair it?

Post by TXGOAT2 » Sat Jul 30, 2022 8:32 am

Search : "antique garage jack" . I got many results on DuckDuckGo.

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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sat Jul 30, 2022 11:26 am

It seems to strongly resemble a 1930's Weaver Lo-Hi, however, so far I cannot find any marking or identifier on it.

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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sat Jul 30, 2022 3:17 pm

Positive ID under the greasy crud it is a Weaver WA-73 four ton and it looks like rebuild kits are available.
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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sat Jul 30, 2022 4:03 pm

Two rebuild kits available simple one and lots of stuff one:

WA73 REPAIR KIT (blackhawkparts.com) https://www.blackhawkparts.com/product385.html

Weaver Seal Kits | Model #WA-73 | Lazzar's Floor Jack Repair Parts (hcrcnow.com)
https://www.hcrcnow.com/shop/seal-kits/product/2681

Schematic here: https://www.hcrcnow.com/uploads/drawing ... ck4ton.pdf

I still haven't found the green paint code. I am wondering if I should go for the rebuild myself.

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Re: Long Antique Floor Jack what is it, repair it?

Post by perry kete » Sat Jul 30, 2022 5:30 pm

Well hells bells you rebuilt a car from scratch I'm sure you can do a jack!
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Re: Long Antique Floor Jack what is it, repair it?

Post by Duey_C » Sun Jul 31, 2022 12:59 am

Yes! Doc, you sure can do this like Perry says and Pat suggests. You remember feelings of accomplishment! Me too.
Hydraulic jacks are not much more than oil, seals, check balls and seats.
Personally, I believe many of us would enjoy watching your rebuild of an antique jack and find it useful. For other jacks as well.
:)
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Re: Long Antique Floor Jack what is it, repair it?

Post by TXGOAT2 » Sun Jul 31, 2022 8:13 am

In the interest of safety, be sure the mechanical linkage is in good condition. In the interest of convenience, make sure the wheels and caster swivels are working properly. The jack should be easy to move and position on a smooth hard floor. The foot pedal may be a "fast pedal" to quickly adjust the saddle height or raise light loads. A Model T adapter to properly raise either the front or rear axle without damage can be easily fabricated.

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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sun Jul 31, 2022 2:01 pm

Some instructions on how to rebuild it. https://www.hcrcnow.com/uploads/drawing ... ctions.pdf

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Re: Long Antique Floor Jack what is it, repair it?

Post by perry kete » Sun Jul 31, 2022 3:26 pm

Those are nice detailed instructions that even I can understand! :shock:

I see by looking at the link you posted you have a 4 ton jack. They are several hundred dollars.
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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Mon Aug 01, 2022 7:13 pm

It looks like it has 2 layers of green paint where there is paint. The original paint color code is still unknown. I kerosened it and pressured washed it clean.
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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Mon Aug 01, 2022 7:51 pm

I am wondering if I should get the $52 Blackhawk kit or the seems to have everything Lazaar's for $127?

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Re: Long Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Sat Aug 13, 2022 7:58 pm

I bought the Lazzars rebuild set. I've started disassembly. The ram comes out as a unit. I took it to the auto paint store to get the paint color matched.
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Re: Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Wed Sep 06, 2023 10:30 am

I have this working well enough after discovering that the two ball valves were obviously not even there. While the saddle now stays up and has a lot of force it still sinks a bit with time and takes awhile to start to go up when pumping. The Zerk fitting on the lifting arm was smashed so I drilled it out and am awaiting replacement Zerk. It looks like it hasn't been greased in forever. I also am unsure how the recoil works for the pedal to pump it up. As in it has no recoil at this time except for manual. Progress!
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Re: Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Thu Mar 07, 2024 12:40 am

Does anyone know by what mechanism of how the pumping pedal of this is supposed to recoil back up after pumping with your foot? I've reviewed many pictures and diagrams but do not see how it goes. A previous owner rigged a lousy spring with wire but that does not seem to be how these are. I don't see any springs currently as to how the pedal is supposed to recoil. Any advice is welcome.


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Re: Weaver Antique Floor Jack what is it, repair it?

Post by Jerry VanOoteghem » Thu Mar 07, 2024 8:35 am

ivaldes1 wrote:
Thu Mar 07, 2024 12:40 am
Does anyone know by what mechanism of how the pumping pedal of this is supposed to recoil back up after pumping with your foot? I've reviewed many pictures and diagrams but do not see how it goes. A previous owner rigged a lousy spring with wire but that does not seem to be how these are. I don't see any springs currently as to how the pedal is supposed to recoil. Any advice is welcome.
I'd be willing to bet that this is your pedal return spring...

The spring shown above this one seems to be supported by an angle iron bracket, sitting at an odd angle and looking as if it's been broken? modified?
Jack.png
Jack.png (397.85 KiB) Viewed 312 times

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Re: Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Thu Mar 07, 2024 8:42 pm

Thanks you put me on to what it might be. It is actually the other rod and spring on the other side in the picture. Attached is a parts diagram pdf. My AS-9784 rod does not seem to be original. It lacks the spring retainer near the hook end so the spring isn't long enough to recoil it. A quick shopping check for a replacement Weaver part number AS-9784 rod doesn't seem to be readily available. Perhaps I could weld a washer on at about the right location.
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ivaldes1
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Re: Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Thu Mar 07, 2024 8:49 pm

The good news, Lazzars has an AS-9785. The bad news is that it is $82!! https://www.hcrcnow.com/shop/parts/product/24832

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ivaldes1
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Re: Weaver Antique Floor Jack what is it, repair it?

Post by ivaldes1 » Thu Mar 07, 2024 10:18 pm

Stainless steel hose clamp worked to retain the spring! Now on to the leaks!

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