No its not, it the engineer whining because he cant find the mirror and wants to comb his hair
Ed[:D]
must not be talking about me i dont have any hair…
The whine in idling EMD locomotives is mainly due to the spur gears in the drive train that runs the turbocharger up to notch 6, and this is what is heard mainly during acceleration. When in idle, there is also a slight “ching ching” noise caused by the shock absorbing springs in the final gear that is involved in the engagement and disengagement of the clutch in the turbocharger drive. The clutch releases the turbocharger at notch 7 to be powered by the exhaust gas, and takes over drive as the engine is notched back. The turbocharger and its exhaust ducting act as a muffler and a turbocharged engine has a much less clear beat than the blower engines. As a result the gear whine, which should also be present in blower engines, is more obvious with the exhaust noise reduced.
M636C
maybe the train crew caught a few foamer railfans and locked 'em under the hood because they were whining about a paint scheme.
As per my sig, I have a late 7.3L. The 6.0 has a nicer turbo whine to it though, but not enough to make me trade my massive grunt 7.3L.
Can’t wait to test drive a 6.4L twin turbo.
Adrianspeeder