Posted by NYC Man on January 3, 2014 
And probably the crankshaft problems also, too bad, I liked them.
Posted by Craig Walker on January 3, 2014 
The UP I grew up with! Thanks for the memories...
Posted by on January 3, 2014 
per horsepower these units consumed the same amount of fuel as any other second-generation loco, so yes indeed, the dreaded crankshaft problem is what knocked these units almost immediately off their pedestal.
Posted by xBNSFer on October 7, 2016 
Think they did improve on the crankshaft issues later, and other roads (ATSF and SP) favored the '45s over the '40s for much longer. I don't think the UP had the engine numbers in enough places back then LOL.
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