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Allis Chalmers Discussion Forum
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need help identifying

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Tim Curl

05-23-2015 07:41:18




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I recently bought a WD45 and the serial number ends with a D. Does this stand for diesel? It has the curved shifter and also has an offset in the clutch pedal that interferes with the brake linkage and the frame when pushed in. Any ideas what I've got?




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Tim Curl

05-25-2015 04:16:12




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
Thank you all for your help. I was just trying to figure out what I had bought. Maybe someone threw this old tractor together for a puller at some point in its life. It doesn't have any signs of having weight brackets or any missing parts to lighten it up, other than a few missing bolts. It still has the spinouts on it also, who knows. The old thing does run pretty good, especially for a two hundred dollar tractor, thank God scrap prices are down! I just hate to see a piece of history go to scrap. Thanks again.

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DrAllis

05-24-2015 10:20:27




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
No way. Tooth length is longer on the 9 X 35 for more surface area. The 9 X 35 tooth is the exact same R&P as used in the D-17 and D-19 which were way more HP than a WD-45 diesel.



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DrAllis

05-24-2015 07:05:29




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
WD-45 diesel ring and pinion are 9 teeth X 35 teeth. WD-45 gas ring and pinion are 13 teeth X 43 teeth. The diesel rear PTO hanger bearing casting under the step platform also says "diesel" on it because it and the PTO drop box are positioned a little lower down than a gasser. Older WD ring and pinions are 12 X 43 teeth.



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fastfarmall

05-24-2015 09:27:17




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 Re: need help identifying in reply to DrAllis, 05-24-2015 07:05:29  
Oh that's the skinny on the teeth count, But as far as strength or longevity the 13 X 43 , would of been the better,Do you agree Dr?



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DrAllis

05-24-2015 06:18:29




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
If you really, absitively and absolutely need to know ( don't know why it's a big deal) remove the lift arms and platform and remove the rear differential cover and count the teeth on the ring and pinion gears. If you give me the ring gear count, I think that's all I need. The gearing is about 15% slower than a regular gas rearend, which is made up with the engine running faster on the diesel (1700 RPM on a gas and 1900 RPM on a diesel) and a larger rear tire. The fact that you have the dog-legged clutch pedal convinces me BUT, maybe someone ran the rearend out of oil and now it has gas R&P in it. Who knows without counting teeth.

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Tim Curl

05-24-2015 05:27:47




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
It does have a 4 cyl gas engine. The engine serial number starts with 45-..... and it does not have the side cover on the block and does have the aluminum distributor drive housing. The frame rails are the same length as the other WD45 gas tractor that I have. My main concern is weather it has a diesel rearend. Is the D at the end of the serial number the only way to identify it without tearing it down?

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tractorguy2

05-23-2015 08:15:21




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 07:41:18  
A photo would be a big help. My wd45 diesel serial number ends with "D".Is yours a Diesel? All wd45's had the curved shifter.



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old

05-23-2015 10:00:51




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 Re: need help identifying in reply to tractorguy2, 05-23-2015 08:15:21  
All WD45s may have come with a curved shifter but not all of them have them I know I have a WD45 but it has a straight shifter on it.



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Tim Curl

05-23-2015 08:36:58




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 Re: need help identifying in reply to tractorguy2, 05-23-2015 08:15:21  
No, it is has a gas engine, this was what threw me. It may be a pieced together tractor, as the hood does not match the paint and the offset clutch pedal interferes with the brake linkage and frame rail. I have another WD and another WD45 and I have went and looked at several others, none have an offset clutch pedal. I have no idea what Allis Chalmers tractor uses this pedal, unless a diesel uses this pedal. I bought this tractor at an auction, so I have no way of knowing its history. The D at the end of the serial number is of slightly different size and font than the letters WD that begin the serial number. It is the exact same size as the numbers though. The WD that begins all the serial numbers on all the tractors that I looked at is slightly smaller. I wonder if the diesel rearend was stamped with the D, after the rearend was built at the factory? From what I can learn, the diesel rearend is geared slightly lower than the gas ones. I don't know of any way to tell the difference, other than tearing down this rearend and a gas rearend, and comparing the gear ratios.

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fastfarmall

05-23-2015 20:08:09




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 08:36:58  
Yeah, the WD-45 Diesel were geared lower, to make the advertised speeds ,the same as the gas,45's because the diesel's run faster.



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Jerry Coulter

05-23-2015 10:15:41




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 Re: need help identifying in reply to Tim Curl, 05-23-2015 08:36:58  
If it is not diesel, does it have a 4 cylinder or 6 cylinder gas engine. Some 6 cylinder gas engines have been retrofitted into a WD45D chassis.



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