226 engine
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=197356
Printed Date: 25 Sep 2024 at 3:37am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 226 engine
Posted By: acd17toy
Subject: 226 engine
Date Posted: 24 Sep 2023 at 6:13pm
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Recently bought a WD45 at the end of the engine serial number is the letters OH. what does these letters mean?
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Replies:
Posted By: DaveKamp
Date Posted: 24 Sep 2023 at 9:09pm
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Perhaps a rebuilder stamped it OH to signify that they had performed an overhaul? ------------- Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest. |
Posted By: Lon(MN)
Date Posted: 25 Sep 2023 at 7:12am
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H was propane. PA was gas engine. ------------- http://lonsallischalmers.com |
Posted By: Brian G. NY
Date Posted: 25 Sep 2023 at 11:35am
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If the tractor is a WD, the engine number will be WD-XXXXXX followed by one or two letters. In this case PA or GA (late) indicates Gasoline, K (or KA) indicates Kerosene or distillate and H (or HA) indicates "High Altitude". If the tractor is a WD-45, the serial number should consist of 45- XXXXXX followed by 1 or 2 letters indicating fuel type. eg: G or GA for gasoline. I can't find the fuel suffix letters for the WD-45 other than gasoline but I am going to assume they may be the same as the late WDs. I can't find any specific letter designations for the WD-45 propane tractors but I see that piston part number 223507 is used for both the WD low octane fuel tractors (5.00:1) as well as the WD-45 Butane, LP gas and gasoline powered tractors (7.2:1). The wide variation in compression ratios must be a result of the 4" vs 4.5" stroke. It seems I have seen a few other variations in the last two digits of engine serial numbers over the years but, unfortunately, I didn't make note of them at the time. Sorry for the long post, lot of stuff to cover here. After all this, I hope you do find an answer to your seemingly simple question. LOL |
Posted By: acd17toy
Date Posted: 25 Sep 2023 at 6:19pm
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Cleaned the end of the engine serial number better the letters are GH, the tractor is a WD45, according to the serial number over 200 hundred was built before it was.
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Posted By: TramwayGuy
Date Posted: 25 Sep 2023 at 8:06pm
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“.. Cleaned the end of the engine serial number better the letters are GH..” Is it possible the letters are ‘GA’? That would be more likely. |
Posted By: Brian G. NY
Date Posted: 26 Sep 2023 at 10:15am
I agree with Tram; by far, the greatest number of WD-45s had GA (gasoline) as a serial number suffix.
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TramwayGuy wrote:Posted By: acd17toy
Date Posted: 26 Sep 2023 at 6:18pm
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The letter is a clearly H. Could this engine be one built for a high altitude area?
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Posted By: Brian G. NY
Date Posted: 27 Sep 2023 at 8:56am
| Please post the entire engine serial number! |