What was found
THROTTLE KNOBS STAYED WITH A HALF A KNOB. ON TAXI OUT ENG 1 LAGGED ENG NR 2 N1 UP TO 30 PERCENT ACCELARATION. FOR TAKEOFF, TRIED TO SET 40 PERCENT N1 AND ENG NR 1 N1 LAGGED ENG 2 N1 BY INITALLY 10 TO 20 PERCENT. WHEN TO GAD FOR TAKEOFF THE N 1 INITIALLY WERE WITHIN 7 TO 10 PERCENT NIS THEN ENG NR 1 N1 ACCELERATION LAGGED. ENG NR 2 N1 UP TO 20 PERCENT FINALLY N1'S STABILIZED AT ENG NR 1 N1 93 PERCENT ENG 2 N1 100.8 PERCENT ABORTED TAKEOFF AT 80 KIAS ADHERED TO QRH. COMPLETED INSTALLATION OF FUEL PUMP STEP 3 PARGRAPH H-11 PER AMM 73-12-01-02 AND COMPLETED INSTALLATION OF MEC PER AMM 73-21-01-04 FROM STEP 4 PAR C-3. RAN ENGINE AND LEAK CHECK AND POWER ASSURANCE PER ENGINE RUN FORM AND JRH 4-20. OPS CHECKED GOOD. OK TO CONTINUE.