New Jersey's Black River & Western RS-1 211 at Ringoes, July 1980. It became BRW 58, but has since been scrapped. This unit had so many owners that it's hard to make sense of.
Looks more like an RS-0.5! I see a Blunt truck near the left edge of the photo. I looked around and 105 was whole again in 2008 as SARM (Southern Appalachia Railway Museum) 39-5308. That's much better!
Alco valve cover inside N&W C-630 #135 on the dead track at Radford, VA and the #135. [04/02/1989] I read that she's now at the Virginia Museum of Transportation at Roanoke.
Inside the engine room on CN 9400, MLW FA1, the first "streamlined" loco built in Canada: That big round thing is the turbocharger. No wonder those 244s smoked like a steam loco getting its flues sanded. It took time for this half-ton piece of machinery to speed up and catch up with the throttle setting...
Yep... There's a little plaque on it (like other major engine room components) that says how much it weighs: 647 kg = 1430 lbs!! A teensy bit over half a ton... Like it came out of the factory in 1950! It's a prized museum piece. Spotless inside and out so people like you and me can visit the engine room and the cab (which has The Best Seat Of All).
Holy cow. As you noted, no wonder it took that baby time to spool up and all the while, injectors were increasing the quantity of fuel.
Smoke in a diesel engine is usually a turbocharger issue, other than maintenance of the injectors and air filter, so no wonder a 251 can smoke as such. Variable geometry turbochargers are usually an answer to these issues, but i think not in the 50s….