Ex-Texas & Pacific 2-10-4 610--leased to the Southern--slowly marches upgrade through Bluefield yard with a 16-car NRHS convention train from Roanoke. The engine, crew and first few cars are coated with oil blown from the stack when the engine's booming exhaust blew back through the stack going through Montgomery Tunnel. The backward force of the exhaust extinguished the oil fire. In the moments afterwards, unburned oil spewed up and then back down over the engine, cab, and everyone in it. It was a MESS! The train continued outside the tunnel and stopped. Bill Purdie relit the fire with a fusee on a steel rod extended into the firebox. When steam pressure came back up, the 610 whistled off and continued to Bluefield, where Bicentennial SD45 1776 took over for a swing to Cedar Bluff and back. The EMD and the 610 then doubleheaded back to Roanoke that evening.