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Allis Chalmers Discussion Forum
Show Parts for Model:

Allis Chambers wd 40

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Country Nate

07-28-2005 05:39:45
206.224.20.3



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Hi,

First thing I want to say is that I don't know a darn thing about allis chambers tractors. I need a tractor to do farm work on 37 acres of tillable ground, and I have been looking for a couple of weeks. There is an older gentleman in my neighborhood who is selling a 1951 wd 40 because he is to old to drive it anymore. He wants $1800 for it. He says his son rebuilt it a couple of years ago and it has been bored over a little bit so it should be about 45 horse. I looked at the tractor and I like the size and the way it looks.

My concerns are how hard would it be to convert over to a 3pt hitch and how hard would it be to install remote hydraulics on it to run farm implements like combines mowing machines etc? Is it even possible to do these things?

Thank you in advance Nate Bowser

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John (MO)

07-28-2005 05:58:32
198.209.172.95



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 Re: Allis Chambers wd 40 in reply to Country Nate, 07-28-2005 05:39:45  
First off, there is no such thing as an Allis Chalmers WD-40. AC made a WD from 1948 till 1953, then a WD45 from 1953 till 1957. If the tractor is a 1951, it' a WD. The WD tractor had about 28 hp at the drawbar. In running conditon a WD is worth between $600 and $1200. A lot depends on tires and condition of the sheet metal and of course how good it runs. You want to drive the tractor down hill in each gear and let off the gas to make sure it does not jump out of gear. This is an all too common problem caused by operators grinding the gears when shifting rather than waiting for the tractor to shop and shifting properly. It's a pretty expensive fix if the transmission is worn out. A new 3 point conversion for a WD is about $300. The AC WD hydraulic system was one way, high pressure, and low volume. To convert it you will need a new hydraulic pump that you can rig to run off the crank. You'll also need a storage tank and of course to plumb the system. In my opinion, an $1800 WD would need to be in top notch shape, with GOOD tires and the engine work that you mention, other wise it's way to high. It is a great tractor however.

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Country Nate

07-28-2005 07:27:05
206.224.20.3



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 Re: Allis Chambers wd 40 in reply to John (MO), 07-28-2005 05:58:32  
John, thanks for the response. That is good information about the three point and the hydraulics. It has to be a 45 then. I know it had a WD and then a 4 on the hood. I did not look real close but I know it had a 4 on it. I'm not trying to be ignorant but the old timer is not doing to good and he might have been confused when he said 40.

How many hp did the 45 have? Would that be a fair price? This one is in pretty decent shape. It even has a wide front end.

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John (MO)

07-28-2005 11:07:16
198.209.172.95



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 Re: Allis Chambers wd 40 in reply to Country Nate, 07-28-2005 07:27:05  
The WD45 had about 40 drawbar horsepower. To tell the difference between the tractors, look a the side of the engine block. The straight WD block has a removeable plate bolted to the side of the block it"s entire length, the WD45 block is cast solid. The very last year of WD"s had a curved shifter instead of a straight one. All WD45"s had the curved shifter. On the left side of this page, under the heading "Reseach & Info" there is a link to tractor serial numbers. Click on that link, go to Allis Chalmers and then the tractor model and you will see what years used what serial numbers. This should tell you what the tractor started life as. Remember is over 50 years old so lots of things including motors, transmissions and rearends could have been swapped in that time. $1800 is pretty much top price for a good running WD45 coming off the farm. For that that money, the transmission has to be in good shape, the tires have to be usable at least, and it really should have a 3 point adapter. The hydraulics are the same between the WD and the WD45.

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John (MO)

07-28-2005 11:14:01
198.209.172.95



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 Re: Allis Chambers wd 40 in reply to John (MO), 07-28-2005 11:07:16  
You can add on a single acting hydraulic remote with out much problem. Depending on the size of the hydraulic cylinder you are using then, the system should operate it ok but maybe a little slower that you would like. As I said the system is high pressure, low volume instead of low pressure, high volume of more modern tractors. If that will work the cylinder you want to run, it shouldn't hurt it unless you let the pump keep pumping more and more pressure against a fully extended cylinder. If you do that, something may blow.

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Jerry(mo)

07-28-2005 12:17:37
64.219.133.131



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 Re: Allis Chambers wd 40 in reply to John (MO), 07-28-2005 11:14:01  

Hey John my full Hyd been working great on my wd45



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John (MO)

07-28-2005 12:32:30
198.209.172.95



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 Re: Allis Chambers wd 40 in reply to Jerry(mo) , 07-28-2005 12:17:37  
That looks great Jerry! It should be great for a lot of situations. I assume it is still a high pressure, low volume system? How do you think it would work on big cylinders, like the main loader cylinders if you converted them to newer 2 way cylinders? I bet your conversion will meet the needs of most of the people wanting 2 way hydraulics on the WD series and even the D series tractors.



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Jerry(mo)

07-28-2005 12:46:03
64.219.133.131



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 Re: Allis Chambers wd 40 in reply to John (MO), 07-28-2005 12:32:30  

I'd say its low volume mid pressure. You can see in the picture the pressure gauge only goes to 2000psi. Its not that slow but the loader is a ac90 made for the wd45 and the 2-way cylinder on the bucket is 1.25 dia. I only used 1 cylinder because of the low volume. You are right tho it would take a 3" dia cylinder a long time to fill up with the existing pump

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