TM 9-2910-226-34 CHAPTER 3 REPAIR OF FUEL INJECTION PUMP Section I. GENERAL 3-1. Removal and Installation. Refer to TM 9-2815 210-34 and TM 9-2815-204-34 for instructions covering the removal and installation of the metering and distributing fuel injection pump assembly. Refer to TM 9-2815-210-34P for procurement of cap plug set, FSN. 5340-450-5718, for covering fuel system openings. 3-2. Cleaning Before Disassembly. CAUTION Absolute cleanliness of fuel pump parts must be maintained during all disassembly, in- spection, repair, and assembly procedures. Dust, dirt, grime, or any abrasive matter must not come in contact with precision lapped surfaces of internal parts. a. Clean the fuel injection pump externally before disassembly procedures start. The external cleaning procedures listed in b and c below are recommended for all fuel injection pumps. b. Cover or plug all threaded ports and openings to prevent entrance of foreign matter during external cleaning operations. c. Use volatile mineral spirits paint thinner or dry cleaning solvent and scrub the pump with a soft bristle brush to remove all external accumulation of grease, dirt, or other foreign matter. Section Il. DISASSEMBLY OF FUEL INJECTION PUMP INTO SUBASSEMBLIES 3-3. General. a. Disassemble the metering and 3-4. Removal of Fuel Supply Pump Assembly. Refer distributing fuel injection pump in figure number to figure 3-1. Remove two machine screws (B), lock- sequence. washers (C), and remove the fuel supply pump b. All packings, gaskets, and sealing rings must assembly (D). Remove and discard supply pump be discarded during disassembly to insure gasket (E). replacement. c. Do not remove any hose or tube fittings unless there is evidence of leakage or darn age. 3-0