WD, what have I got???
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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=57001
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Topic: WD, what have I got???
Posted By: Dave/cvny
Subject: WD, what have I got???
Date Posted: 17 Sep 2012 at 1:56pm
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I have a WD serial #117077 that I took the motor out of yesterday as it had developed a knock. I thought it was stock but the stroke measures at 4.5 and the pistons are also 4.5 across. The pistons are Alcoa aluminum #224753 and they are flat top. The number on the engine block is 328939 PA. The crank has a casting # of U 3986. After teardown we found that the #4 crank/ rod bearing spun, the crank is not to bad and we think it can be turned. So I guess my question is is this an M&W kit or not and what do I have? What is the displacement of this motor? While I have it torn apart it is gonna get some new tin and some new paint! I might even use it to go pulling!
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Replies:
Posted By: CTuckerNWIL
Date Posted: 17 Sep 2012 at 3:31pm
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Wd45 crank and who knows what kind of pistons and sleeves. 286.2783 cubic inches at 4.5 x 4.5 according to my calculator.That engine number is about mid 1952 WD range. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Allis dave
Date Posted: 18 Sep 2012 at 7:31am
| M&W kits had a 4.125 bore. The pistons are easy to identify because they say either M&W or maybe just M on the side. I can't remember which. |
Posted By: Gary
Date Posted: 18 Sep 2012 at 7:38am
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Dave Are you certain of the 4 1/2" Pistons ? Can't imagine 4 1/2" Pistons in a WD or 45 Block. Gary
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Posted By: Dave/cvny
Date Posted: 18 Sep 2012 at 3:16pm
Ok so I guess I better get my eyes checked! The pistons are only 4 inches across!!! But they are aluminum made by Alcoa.
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Posted By: CTuckerNWIL
Date Posted: 18 Sep 2012 at 7:23pm
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Then you have a 226 cubic inch engine. Same as the 45's
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |