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   Fred in Pa  
   
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   Joined: 13 Sep 2009 Location: Hanover Pa. Points: 9210  | 
  
   
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     Topic: wc enginesPosted: 20 Aug 2015 at 5:26pm  | 
 
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   Rockers and valve retainers where also different 
    
   
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   AaronSEIA  
   
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   Joined: 11 Sep 2009 Location: Mt Pleasant, IA Points: 2573  | 
  
   
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     Posted: 20 Aug 2015 at 3:22pm | 
 
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   The early ones did have smaller bearings.  When was the head changed to have the 3 smaller bolts down the right side?  Few real minor things like cast valve covers/pans, the mag was changed.  Think they had 2 different carbs.  Air cleaner was changed at styled.  But as far as the engine itself goes, the crank is all I can think of other than the head bolts.  You can get on AGCOparts.com and look for serial number changes. 
   
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   BennyLumpkin  
   
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   Joined: 22 Mar 2010 Location: Centre Hall, PA Points: 2657  | 
  
   
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     Posted: 20 Aug 2015 at 3:07pm | 
 
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   Not that I've heard of. Should have been the same from early 201 til the D17 came out and they went to a larger main bearing
    
   
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     Central PA Allis Express 
   
  1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110  | 
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   TramwayGuy  
   
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   Joined: 19 Jan 2010 Location: Northern NY Points: 11781  | 
  
   
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     Posted: 20 Aug 2015 at 1:56pm | 
 
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   Weren't a very few early 'W' engines that had slightly smaller crankshaft bearings?  Not the Waukesha engines, though..
    
   
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   BennyLumpkin  
   
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   Joined: 22 Mar 2010 Location: Centre Hall, PA Points: 2657  | 
  
   
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     Posted: 20 Aug 2015 at 1:17pm | 
 
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   Mag drives were different, manifolds changed, compression ratios...wasn't alot.
    
   
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     Central PA Allis Express 
   
  1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110  | 
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   ALLIS NUT  
   
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   Joined: 23 Dec 2012 Location: wisconsin Points: 52  | 
  
   
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     Posted: 20 Aug 2015 at 12:23pm | 
 
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   can you please name some of the changes the wc engine had from the first unstyled wc with the allis engine to the last styled wc had? thank you in advance.
    
   
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     TERRA TIGER D-19 WC UNSTYLED WC STYLED WD-45 UC,rc,190,ca,7790,B10  
     
   
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