Diesel Service Report, May 21, 2023
ATSF Fairbanks Morse H12-44 SF560 Restoration
SF108 Prelube System
The decision was made to add a pre-lubrication system to SF108. That allows for pumping oil throughout the Diesel engine prior to actually starting the engine. Its an excellent way to avoid engine wear caused by lack of oil flow and pressure while starting the engine. An electric pump was installed that sucks oil out of the crank case and pumps it through filters and then into the output port of the engine’s main oil pump. That forces oil into the oil passages leading to crankshaft main bearings, rod bearings, camshaft bearings, rocker arm bearings, and many other places.