QUOTE: Originally posted by trainfan1221 If I recall, the frame was the same legnth as a contemporary SD40-2, it looked bigger because it actually filled the whole frame out. I could be wrong. It is very hard to judge once something is changed on a locomotive.
QUOTE: Originally posted by James_the_Mad It became an issue with the SD40 & SD45 because of their higher horsepower. Cooling capacity wasn't an issue on lower horsepower units.
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QUOTE: Originally posted by Murphy Siding QUOTE: Originally posted by James_the_Mad It became an issue with the SD40 & SD45 because of their higher horsepower. Cooling capacity wasn't an issue on lower horsepower units. I take that to mean that later EMD's had that problem worked out?
QUOTE: Originally posted by cpbloom QUOTE: Originally posted by Murphy Siding QUOTE: Originally posted by cpbloom Ok I got an add-on question. Are GP15-1s similar to tunnel motors or are they similar only in looks? Are you saying similar, because the intakes for the radiators are down low? Yes.
QUOTE: Originally posted by Murphy Siding QUOTE: Originally posted by cpbloom Ok I got an add-on question. Are GP15-1s similar to tunnel motors or are they similar only in looks? Are you saying similar, because the intakes for the radiators are down low?
QUOTE: Originally posted by cpbloom Ok I got an add-on question. Are GP15-1s similar to tunnel motors or are they similar only in looks?
QUOTE: Originally posted by chad thomas From the pictures I have seen (DMIR / CN) I would say no.
QUOTE: Originally posted by Murphy Siding as some on here mentioned that having the fans and radiators down low created additional maintenance problems.
QUOTE: Originally posted by espeefoamer AFIK they have all been rebuilt with 16 cylinder engines.
QUOTE: Originally posted by tunnelmtrfan It's very intresting that MRL has not aquired any of these engines. With coal trains and long freight drags through the area up north thru tunnels, I wonder how the new SD-70 Ace will do, or will EMD try to design a SD-70T? Probably not but it could make for a good project engine. Also how many true SD-45T-2 retain the 20 cylinder prime mover that the SD-45 were plagued with?
"I Often Dream of Trains"-From the Album of the Same Name by Robyn Hitchcock
QUOTE: Originally posted by James_the_Mad QUOTE: Originally posted by espeefoamer AFIK they have all been rebuilt with 16 cylinder engines. I believe that is correct. Every UP SD45T-2 I've seen recently has been marked as an SD40T-2, indicating a reduction of horse power. I can tell they used to be 45's because they have 3 radiator hatches, but the stencilling says they are now rated as 40's.
QUOTE: Originally posted by Murphy Siding QUOTE: Originally posted by chad thomas From the pictures I have seen (DMIR / CN) I would say no. I got that impression from the pictures too. I just wondered, as some on here mentioned that having the fans and radiators down low created additional maintenance problems.
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