What all did CSX do to them during the rebuilt? Was it paint and a few modifications or a complete tear down and rebuild from the ground up?
The main thing CSX did was derate the prime movers to 3000 HP.
Nick
SD50-2s was just a derate of the prime mover. SD50-3s are a full rebuild.
Would the full rebuild consist of a complete tear down and rebuild from the ground up or just major components?
If it’s SD50’s that you’re interested in (and not just the CSX aspect), you may want to check out the latest issue of Diesel Era – they have an article on NS’s SD50 rebuilding efforts