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Allis Chalmers Discussion Forum
Show Parts for Model:

Difference between WD and WD-45

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Troy Schuelke

04-11-2014 09:46:15
96.126.45.205



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I would like to know the difference between a WD and a WD-45 Allis. I know that the HP is a difference, but what outside feature may differ from a WD and a WD-45? Someone said that the cylinder heads are different between the two. I would like to know since I want to buy one someday. Thanks




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thdrduck

04-14-2014 06:20:00
184.158.49.243



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 09:46:15  
One difference you can't see but is substantial is that a WD uses first gear for reverse and a 45 uses 2nd. I too have seen a plate used on the left side as a block repair, used with large bolts or threaded rod all the way through the other side to hold the 2 halves together.



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Ted J

04-12-2014 10:56:08
68.117.89.15



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 09:46:15  
The plate is on the right side as you are sitting on the tractor. It runs the whole length of the block and is about 5" high. Very easy to see. That is by far the biggest give away.



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Tramway guy

04-12-2014 10:41:39
64.185.154.188



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 09:46:15  
Best way to tell is by serial number. Almost all of these features overlapped at various times. Battery ignition was standard on late WDs. Three disc clutch didn't start until after a few WD45's were built. And even so, there could have been many swaps into either tractor so just because you have a plate on the right side of the engine doesn't mean you don't have 45 internals.



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JMS/.MN

04-11-2014 12:28:03
209.237.125.241



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 09:46:15  
WD has a 201 cu in block with a 3 inch high head vs 226 cu in block with a 4 inch head in a WD45. WD block has a bolt on plate on right side, WD45 is solid cast. WD45 has a half-inch longer stroke crankshaft with Power Crater, not flat top pistons. WD standard was magneto ignition, WD45 was battery ignition. WD hand clutch had two discs, WD45 had three discs to handle more power, standard rear tires were an inch wider. Straight shifter is a WD, although late 1952, WD had constant mesh transmission with curved shifter. WD45 were all curved shifter. WD45 came out Spring 1053, although some WDs were still built then.

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Troy Schuelke

04-11-2014 19:45:15
96.126.45.205



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 Re: Difference between WD and WD-45 in reply to JMS/.MN, 04-11-2014 12:28:03  
Where were the bolt on plates located on the right side of the block? I am trying to look at a picture of a WD-45 on the internet for sale trying to pick out the features of a WD-45.



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crawlerjohn

04-12-2014 16:36:31
96.60.208.48



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 19:45:15  
The one on fleabay in KY is a 45.



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Lonnie Smith

04-11-2014 20:28:56
209.212.44.144



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 Re: Difference between WD and WD-45 in reply to Troy Schuelke, 04-11-2014 19:45:15  
The plate is behind the oil filter and distributor on the right side.



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john gottlied

04-12-2014 06:22:35
137.119.152.23



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 Re: Difference between WD and WD-45 in reply to Lonnie Smith, 04-11-2014 20:28:56  
sorry to break your bubble, the bolt on plate is on the left side behind carbuator. later WD"s had snap coupler



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Lonnie Smith

04-12-2014 06:36:52
209.212.44.144



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 Re: Difference between WD and WD-45 in reply to john gottlied, 04-12-2014 06:22:35  
Don't know what kind of of tractors you have but they are not Allis if your plate is behind the carb.



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ACEd

04-13-2014 17:11:17
108.212.166.233



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 Re: Difference between WD and WD-45 in reply to Lonnie Smith, 04-12-2014 06:36:52  
Plates on left behind carb were most likely a repair for a block cracked due to freezing. The water jackets are known to have a problem there if you let the water freeze. Never that way from factory.



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