TM-9-2910-226-34

PUMP, FUEL, METERING AND DISTRIBUTING, ASSEMBLY

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT, MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS

JUNE 1974
TM-9-2910-226-34

  TM-9-2910-226-34 - Page 76 of 208

3-20.
TM 9-2910-226-34
damage can be repaired with a used tap or die.
Replace all threaded parts that are beyond repair.
3-19. Inspection of Overflow Valve Assembly.
Inspect the overflow valve threads for damage and
inspect valve for cracks. Replace the complete
overflow valve assembly if damaged. Refer to figures
3-38, 3-39 and 3-40 for selection of replacement
overflow valves. Both used and new valves will be
functionally inspected at pump calibration and test
as outlined in paragraph 3-58b.
Figure 3-38. Overflow valve assembly (code A. B, C, D
and E pumps).
Figure 3-39. Overflow valve assembly (code F pump).
Fuel Injection Pump
Fuel Supply Pump
Code
A (2910 -178-1 115)
Code
Code C, D and E (2910-759-5410)
Code
Code G (early, late and rebuild,
4320-908.6321.
(3) Refer to figure 3-41 to distinguish the fuel
supply pump identifying features.
(a) Supply pump– 4320-908-6322 has relief
valve in pump gear cover and relief valve housing is
stamped 80 PSI.
(b) Supply pump– 4320-908-6321 has a flat
pump gear cover and check valve screw has ¼-NPT
tapped hole.
(c) Supply pump–
320-999-2276 has relief
valve in pump gear cover and relief valve housing is
stamped 60 PSI.
(d) Supply pump–2910-871-5428 has a flat
pump gear cover and check valve screw does not
have tapped hole.
Figure 3-40. Overflow valve assembly (code G pump).
3-30


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