Figure 18. Fuel injection pump torque valves.

TM 5-6115-400-35

Figure 18. Fuel injection pump torque valves.

(3) Place the control rack of the pump in its

g. Flow Timing of the Fuel Injection Pump.

full fuel position.

Whenever a fuel injection pump has been completely

disassembled and reassembled, it is necessary that both

(4) Remove the delivery valve holder (64, fig.

internal timing and calibration of the pump be checked

15) from cylinder number one.

even though none of the component parts were

replaced. Timing in this particular case does not refer to

Note.

Number one pumping

the setting of the fuel injection pump to the engine, but

element is plunger nearest to drive

refers to the internal adjustment of the various pumping

end.

elements, which in a multi-cylinder injection pump must

each function at a definite time in relation to the rotation

(5) Remove the delivery valve and its spring

of the camshaft. For instance, in a six cylinder pump,

(64, fig. 15) with the fingers.

injection must take place every 60 degrees of pump

camshaft rotation.

The valve body must remain in position.

DO NOT USE MAGNET.

(1) Connect the supply tank, filter and shutoff

valve to the inlet connection of the

Needle nose pliers are permissible.

injection pump.

(6) To determine that there is sufficient

(2) Bleed the pump of all air by loosening one

clearance between maximum plunger

of the bleeder plugs located at top of the

stroke and the delivery valve body, check

pump housing.

Thorough bleeding is

this measurement as described in (f)

essential.

above.