Rebuild WD with WD45 parts
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=18627
Printed Date: 07 Feb 2025 at 4:45am
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Topic: Rebuild WD with WD45 parts
Posted By: Terry GA
Subject: Rebuild WD with WD45 parts
Date Posted: 23 Sep 2010 at 10:42am
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Hi all!I am going to rebuild my WD engine and was thinking of using a WD45 kit.will this work or would i need a different crank etc?If it runs into allot of changes i will just use WD parts.Thanks for any help and advice.
Terry.
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I couldn't repair your brakes, so I made your horn louder.
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Replies:
Posted By: KY
Date Posted: 23 Sep 2010 at 12:11pm
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Well the WD only has a 4 inch stroke
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Posted By: Skyhighballoon(MO)
Date Posted: 23 Sep 2010 at 12:14pm
Terry - I'm no expert but if you want to build it as WD45 spec engine at 226 cu in you'll need the WD45 crank. The 45 had a longer stroke (4" bore X 4.5 stroke) vs the WD's "square" 201 cu engine a (4" bore and 4" stroke). Not sure of the other implications of piston height, compression ratio, etc. to use a WD45 kit in a WD engine if you don't change cranks. Someone else will surely post that. Mike
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1981 Gleaner F2 Corn Plus w 13' flex
1968 Gleaner EIII w 10' & 330
1969 180 gas
1965 D17 S-IV gas
1963 D17 S-III gas
1956 WD45 gas NF PS
1956 All-Crop 66 Big Bin
303 wire baler, 716H, 712H mowers
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Posted By: Lonn
Date Posted: 23 Sep 2010 at 2:18pm
You'll lose compression unless you get a 45 crank. You could put a 175 kit in it and your compression will be about the same as standard WD pistons but it won't be anything like a 45 engine.
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