539 to 531 crankshaft interchangeability

Discussion of products from the American Locomotive Company. A web site with current Alco 251 information can be found here: Fairbanks-Morse/Alco 251.

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539 to 531 crankshaft interchangeability

Postby Kuyahoora Valley » Thu Jun 13, 2013 1:23 pm

Does anyone know if a crankshaft from a 539 would be backfit compatible to a 531? I don't have access to manuals that would answer this question. It appears that it might be since the major difference in the blocks is the mounting that allows the 539 to sit lower in the carbody.
Thank you for any guidance!
Kuyahoora Valley
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Location: Virginia

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