John Deere 6466AF-00 Diesel Engine

John Deere 6466T diesel engine, mechanical fuel system, turbocharged, aftercooled, 466 CID, showing only 2100 hours when removed from a stationary pump unit. ENGINE RUNS STRONG -- WILL NOT RUN ON FUEL ALONE, NEEDS STARTING FLUID, INJECTION PUMP IS NOT PUMPING PROPERLY, LIKELY GUMMED UP FROM SITTING. ENGINE SOUNDS EXCELLENT ON SPRAY. 60 PSI OIL PRESSURE AT COLD IDLE AND 80 PSI AT FULL THROTTLE.