AC4460CW idle

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This past Thursday was able to spend some time watching trains at Kansas City Union Station. While there AC4460CW UP 6945 stopped for a bit right in front of where I was parked. It seemed to have a lope to the idle. Is this normal for that model? Most of the locos I've heard idling had a even idle to them but this one sounded rougher.
 

5thGenRR

New Member
Yes it is normal. All GE's will have a lope when they idle. Especially when you hear them at the low idle. They will be at a high idle when there is more aux power needed like when the air compressor kicks on. GE grinds their cam with quite a bit of overlap.
 




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