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WD to WD 45
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DVGWD48 View Drop Down
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Joined: 31 May 2011
Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DVGWD48 Quote  Post ReplyReply Direct Link To This Post Topic: WD to WD 45
    Posted: 31 May 2011 at 8:38pm
Got a question, I have a '48 WD that needs an overhaul. A gracious fellow forum member gave me a wd45 engine also in need of an overhaul. My question is will the 45 engine fit on my WD frame? My assumption is yes but before I buy the rebuild kit for the 45 I wanted to make sure that there is not a compatibility issue. Thanks in advance.
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Dennis(IA) View Drop Down
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Joined: 12 Sep 2009
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Points: 356 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dennis(IA) Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 8:39pm
Yes
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AC WD45 View Drop Down
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Joined: 28 Sep 2009
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Points: 2060 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC WD45 Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 8:39pm
pretty sure it will. many parts are inter changeable 
German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Bob D. (La) View Drop Down
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Joined: 12 Sep 2009
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Points: 25529 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob D. (La) Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 8:54pm
If you don't look at the serial numberstampedon theblock, you wouldn't know it's a 45engine. Will drop straight in and bolt up.
When you find yourself in a hole,PUT DOWN THE SHOVEL!!!
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Bob D. (La) View Drop Down
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Joined: 12 Sep 2009
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Points: 25529 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob D. (La) Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 8:55pm
If you don't look at the serial number stamped on theblock, you wouldn't know it's a 45 engine. Will drop straight in and bolt up.
When you find yourself in a hole,PUT DOWN THE SHOVEL!!!
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Jeff Z. NY View Drop Down
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Points: 7326 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeff Z. NY Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 8:56pm
Yes it will. A WD45 is a WD with some improvements.
When they upgraded the rear, hand clutch and engine they renamed the WD the WD45.
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Fields View Drop Down
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Joined: 25 Apr 2011
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Points: 359 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fields Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 9:16pm
Look for post on wd45 build ups. You can get a fair amount more power in a rebuild with little or no cost increase. If it is to be a "stock" type rebuild. I sugest E 170 or 175 piston kits You can also have the cam and lifters sent out to be reground for more power. Barney Taylor did mine.
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Jeff Z. NY View Drop Down
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Points: 7326 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeff Z. NY Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 9:23pm
Bob, You can tell a WD engine from a WD45 engine just by looking at them.
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DVGWD48 View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DVGWD48 Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2011 at 9:49pm
Thanks guys for the information. I am sure I will have more questions as I do this rebuild.
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Brian G. NY View Drop Down
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Points: 2246 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jun 2011 at 8:23am
Now.......if the WD block is in good shape, you can put the WD-45 components in/on it and it will look stock but still have all the power of the WD-45.
I would use the 45 crank for 1/2" more stroke.
Get the 1/8" overbore 45 pistons and sleeves.
Use the 45 "tall" head.
Use the 45 carburetor.
The tractor will look pretty much original; only the experts will know.
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