As a certified EMD locomotive composite mechanic I can say that is NOT the turbo. That is in fact cooling fans running at full speed. That unit has two speed fans that can get extremely loud. I have self loaded and load boxed dozens of locomotives in my career and the all get very loud. The fans on the load box and those for engine cooling combine to make a very loud howling. It sounds the same whether they are turbo super charged or roots blown. This locomotive had the telltale turbo whistle that was barely audible over the sound of the fans. The final nail in this coffin is the fact that if a turbo bearing gets bad enough to make noise it is a low growl coupled with an extraordinary amount of smoke and oil that coats the entire locomotive. I have spent many hours washing that sludge off of turbo supercharger locomotives. If anyone cares to argue my terminology on the turbo, please by all means, look it up.
That " howl " is actually the sound of the Radiator fans on top of the long hood and the traction motors you can just barely hear the turbo in this clip.
@eltonjohnfan100 That's totally up to you I was just pointing out what the howl noise was. And for the record I've never ever heard a Turbo make that noise they don't howl they scream.
That is a really loud fan.. There is a Metrolink loco in SO cal that sounds like that.. 1 out of 30+ locos and only this 1 has that loud noise. I am not an Loco Engineer, but it sounds like the Dynamic Brakes are on and that blower motor to cool them is on over drive.
@@dennisyoung4631no, just a symptom of carbon buildup on the turbo blades causing it to be unbalanced. That engine still makes that noise to this day, and the turbo itself is fine minus the noise bylaws it's probably breaking.
