What was found
(CAN) SHORTLY AFTER TAKEOFF THE NR ONE ENGINE OIL HIGH TEMPERATURE/LOW PRESSURE CAUTION LIGHT CAME ON. FLIGHT RETURNED TO DEPARTURE AIRPORT. FLIGHT LANDED APPROX 1000 POUNDS OVERWEIGHT. NO EMERGENCY DECLARED BUT EMERGENCY VEHICLES ON STANDBY. MAINTENANCE TROUBLESHOOTING DRAINED 1 LITER OF OIL FROM OIL TANK, INSPECTED OIL PRESSURE AND TEMPERATURE WIRE HARNESSES AND COMPLETED GROUND ENGINE RUNS. OIL PRESSURE SLOW TO RISE ON START. OIL TEMP ROSE 1 EVERY 2 SECONDS. TEMPERATURE ROSE TO 156 WITH YELLOW CAUTION. FUEL FLOW ALSO FLUCTUATING. AFTER GROUND RUN FOUND OIL OVER SERVICED AGAIN. AGB FOUND WITH 5 LITERS OF OIL, SHOULD HAVE ONLY .75 LITERS. NR 1 LUBE/SCAVENGE OIL PUMP REPLACED AND OIL SYSTEM ADJUSTED TO CORRECT LEVEL. FUEL FLOW TRANSMITTER REPLACED. GROUND RUN CARRIED OUT WITH NO FAULTS PER FIM 79-20-05. OVERWEIGHT LANDING INSPECTION DETERMINED NOT REQUIRED IAW FDR READING AND REQUIREMENTS OF AMM 05-51-01-210-801. (TC 20070928002)