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Adavis 
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Joined: 05 Feb 2023
Location: Oakesdale WA
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 Topic: AC grader identification help
Posted: 05 Feb 2023 at 12:38pm |
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Adavis
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Location: Oakesdale WA
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Posted: 05 Feb 2023 at 12:41pm |
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I apologize for the duplicate post. If someone can delete one of them I'd appreciate it.
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DonBC
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Joined: 12 Sep 2009
Location: Courtenay, BC,
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Posted: 05 Feb 2023 at 1:24pm |
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Since it has a mag instead of a distributor it is probably an older machine with the 201 cu. in. engine and a 6 volt electrical system. Should be a metal tag on the frame next to where you step onto the machine on the right side. The serial number will tell the year of the machine. There are people on this site that have information on serial numbers and year of fabrication. There are suppliers on this site that can supply carb kits. I use to own a D grader that was slightly newer and had a distributor and coil and I switched it over to 12 V and replaced the 6 V generator with a 12 V alternator. Because I had a coil I had to switch the coil to 12 V.
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Gary
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Location: Peterborough,On
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Posted: 05 Feb 2023 at 3:57pm |
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Jim.ME
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Posted: 05 Feb 2023 at 4:50pm |
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The little tag on the carburetor should have the carb number on it to use to get a kit.
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DiyDave
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Location: Gambrills, MD
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Posted: 05 Feb 2023 at 5:24pm |
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Its a D model, same engine as WD tractor...
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Adavis
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Joined: 05 Feb 2023
Location: Oakesdale WA
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Posted: 17 Feb 2023 at 10:14am |
Thank you all very much for the help. I was expecting an email notification if anyone replied to this thread and one never came so I assumed I'd hit a brick wall. I logged in to do more searching and found several responses. Thank you.
Apparently the "metal tag" that has all the important information regarding the machine is missing. No clue why someone would remove that, but its gone. Is there another location where the serial number would/could be located? If we can just find that number I think it will give us any and all information we would need.
Edited by Adavis - 17 Feb 2023 at 10:32am
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DonBC
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Joined: 12 Sep 2009
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Posted: 19 Feb 2023 at 1:04pm |
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The D grader first started in 1949. I would say yours is mid 50's. The one that I had was a 1959 and had the D17 farm tractor engine which was 226 cu.in. and had a coil and distributor. Yours would have the WD farm tractor engine with 201 cu.in. and a magnito otherwise the remainder of your grader and mine were almost identical except that mine had a cab and was painted orange. One thing that I would check is the rubber boot on the shift lever. If it is damaged or missing it will let rain water into the transmission. I replaced mine with the rubber boot from the CV joint from a front wheel drive car. These are simple machines but require a moderate mechanical ability to work on them.
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Crw
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Joined: 14 Dec 2024
Location: Bauxite Ar.
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Posted: 14 Dec 2024 at 10:34am |
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I am looking at a AC D grader, SN D-5332 on one tag and SN 13058 on another tag. Could someone tell me the year and what engine it has. It is a gas engine. Also what option's to convert it to a diesel engine. Thanks
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steve(ill)
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Posted: 14 Dec 2024 at 12:47pm |
looks like yours might be a 1958
Year ----- SN 1949, 1-480. 1950, 481-1060. 1951, 1061-1900. 1952,1901-3100. 1953, 3101-3605. 1954, 3606-4310. 1955, 4311-4770. 1956, 4771-5039. 1957, 5040-5300. 1958, 5301-5540. 1959, 5541-5739. 1960, 5740-5858. 1961, 5859-6114. 1962, 5986-6114. 1963, 6115-6243. 1964 6244-6359. 1965, 6360-xxxx.
Edited by steve(ill) - 14 Dec 2024 at 12:49pm
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 14 Dec 2024 at 12:51pm |
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The GAS model was called a "D" grader... the Diesel option was called a DD grader ... dont know what it would take to "convert" to diesel... Assume you would use an ALLIS engine to match up to the bell housing ? If other, you would need to modify / adaptor plate / clutch..
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Like them all, but love the "B"s.
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Crw
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Posted: 14 Dec 2024 at 1:31pm |
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Do you have info on what engine it should have? Thanks
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DonBC
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Posted: 14 Dec 2024 at 5:41pm |
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It would have the Allis 226 engine. Very common as it was used in the farm tractors, combines and as a power unit for pumps, generators an sawmills. It has been a couple of decades since I sold mine so I don't know who is a good source for parts. There should be reproduction manuals around. They were small but a very capable machine. It look as if it has been well maintained.
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steve(ill)
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Posted: 14 Dec 2024 at 9:11pm |
D grader engine would be the same as a WD45 farm tractor... 230 diesel or 226 gas options.
Edited by steve(ill) - 14 Dec 2024 at 9:13pm
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Like them all, but love the "B"s.
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Crw
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Posted: 15 Dec 2024 at 7:44am |
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Thanks for all the info, this helps me to determine how far I want to pursue this.
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DonBC
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Posted: 8 hours 56 minutes ago at 9:47pm |
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I gave all my data and information that I had on D Graders to the new owner a few years when I sold it. If my memory is correct I think that the diesel was a 6 cylinder and slightly longer so the hood and radiator mounting were different.
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DiyDave
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Posted: 3 hours 3 minutes ago at 3:40am |
Here's a long skinny read on the D-grader, AFAIK, its still being made today. Sorry about the appearance, something must be screwy with their site, today... 
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