Figure 3-41. Fuel supply pump identification.

TM 9-2910-226-34

Figure 3-41. Fuel supply pump identification.

NOTE

c. Inspection.

Components of the fuel supply pump

(1) Inspect the pump housing for cracks, thread

assemblies are not spare part items except

darn age, loose idler gear pin (R), or other evidence of

for a seal repair kit 2910-489-5994. Perform

fuel leakage. If the threads cannot be repaired using

the following test and inspection to deter-

a suitable thread tap, replace the complete assembly.

mine if the supply pump is serviceable, needs

(2) Inspect the fuel pump drive gear (B) fig. 3-43

a seal kit or needs replacement.

for evidence of wear or other damage. Replace the

b. Test. Plug all openings except the fuel inlet.

complete pump assembly if either condition exists.

Using an auxiliary fuel supply, pressurize pump to

d. Installation of the Seal Repair Kit.

60 psi minimum, and examine for fuel leaks, paying

(1) Refer to figure 3-42. Remove four fillister

head screws (A), lockwashers (B) and housing cover

particular attention to the pump housing oil seal. If

the housing oil seal leaks, install the seal repair kit as

(C).

outlined in step d. below.

3-31