by ENR3005 » Tue Oct 31, 2023 12:27 pm
There are some pretty oddball rebuild variations of these engines that SP received along with a number of shortlines and industrial operations over the years. Morrison-Knudsen did a variation for SP called the TE70-4S, rebuilt from retired U25Bs with brand new Sulzar engines which were very short lived and the units are likely best remembered for their new paint and a roof bulge which was much like a GP30. Attempting a repaint of this unique rebuild in TSC would require a pretty complicated child object for the roof bulge. Morrison-Knudsen also did another U25B rebuild project for Weyerhaeuser owned shortline Oregon California & Eastern which they called a TE53-1-4E and the units went on to various industrial operations and shortlines after the OCE shutdown in the early 90s. These differed greatly from the SP units and used recycled EMD567Bs from retired F7s and did not alter the overall appearance of the unit other than new dual exhaust stacks for the EMD engine. Some were also setup to run with Slugs. The later MK rebuilds actually lasted a lot longer with the EMD rebuild, some almost serving almost four decades, I believe the last known operating unit was only retired a few years ago and still sits in a storage yard somewhere in California from what I read at the time. Food for thought for those thinking these were a 70s and earlier type unit, the EMD rebuild would be perfect at home on modern day TSC shortline Adriana County or similar routes as well.
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