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TM 9-2815-225-34&P 3-63. FUEL PUMP TESTING AND CALIBRATION (Contd) LOCATION/ITEM ACTION REMARKS Pump code; Date; CPL  ..........................................................................4128-C 82; 0267 (Big Cam I) Idle Speed @ RPM  ................................................................................38 PSI (262 kPa) @ 500 Idle Speed cc @ RPM ............................................................................17015 cc @ 590 Intake Mfd.  Press ..................................................................................41-49 In./Hg. Calibration @ RPM (Flow) ......................................................................165 (1137 kPa) @ 2100 Calibration Flow Lb./Hr ...........................................................................490 Check Point 1 PSI @ RPM ..........................................................................................128-136 PSI (882-937 kPa) @ 1300 Calibration Flow Lb./Hr ...........................................................................430 Weight-Assist Setting - Spring  ................................................................0.870 in. (22.09 mm) Weight-Assist Spring ..............................................................................P/N 143847 AFC Setting In-Hg PSI .............................................................................................12 Fuel (Flow) ...........................................................................................65 PSI (1137 kPa) (267) Certified-Year-By  ...................................................................................1982-EPA Engine Model  ........................................................................................NTC-400 Big Cam I No-Air Set RPM (Flow) ...........................................................................32 PSI (220 kPa) 220 Idle Plunger  ...........................................................................................Code 25-P/N 141631 Auto. Idle Spring  ....................................................................................P/N 144195 Torque Spring Shims (Thickness) ...........................................................0.020 in. (0.508 mm) P/N 138783 Auto Governor Spring  ............................................................................P/N 3001148 AFC Spring ............................................................................................P/N 179834 NOTE For other pump codes not listed, use Cummins Fuel Pump PT (Type G) Calibration Values. 3-459


 


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