Reply to "EMD E9 major design difference questions"

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Chuck Sartor posted:
Around 1971 BN rebuilt some E8's for their commuter trains before giving them to Amtrak. Were the diesel engines inside original equipment just rebuilt, or were they upgraded, and did they still use their steam boilers? Didn't I read somewhere that a few Rock Island E-B's only have one engine?

Someone please correct me, but I believe all the BN units that went to Amtrak were not rebuilt and all retained steam generators when transferred. However, several E9s were kept for commuter service and lasted in service until 1993. The commuter rebuilds were done in 1973 and all remaining E8s were upgraded to E9 specs. They also were upgraded with head-end power sets to replace the steam generators.

EMC built two AB6 single prime mover locomotives for the Rock Island in 1940. There were based on B units with a flat faced cab and full controls hence the AB designation.

9/6/196:46 PM

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