CHAPTER 3. REPAIR OF FUEL INJECTION PUMP

TM 9-2910-226-34

CHAPTER 3

REPAIR OF FUEL INJECTION PUMP

Section I. GENERAL

must not come in contact with precision

3-1. Removal and Installation. Refer to TM 9-2815

lapped surfaces of internal parts.

210-34 and TM 9-2815-204-34 for instructions

a. Clean the fuel injection pump externally before

covering the removal and installation of the metering

disassembly procedures start. The external cleaning

and distributing fuel injection pump assembly. Refer

to TM 9-2815-210-34P for procurement of cap plug

procedures listed in b and c below are recommended

set, FSN. 5340-450-5718, for covering fuel system

for all fuel injection pumps.

openings.

b. Cover or plug all threaded ports and openings

to prevent entrance of foreign matter during external

3-2. Cleaning Before Disassembly.

cleaning operations.

CAUTION

c. Use volatile mineral spirits paint thinner or dry

Absolute cleanliness of fuel pump parts must

cleaning solvent and scrub the pump with a soft

be maintained during all disassembly, in-

bristle brush to remove all external accumulation of

spection, repair, and assembly procedures.

grease, dirt, or other foreign matter.

Dust, dirt, grime, or any abrasive matter

Section Il. DISASSEMBLY OF FUEL INJECTION PUMP INTO SUBASSEMBLIES

3-4. Removal of Fuel Supply Pump Assembly. Refer

3-3. General. a. Disassemble the metering and

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

assembly (D). Remove and discard supply pump

b. All packings, gaskets, and sealing rings must

b e 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