TM 10-3950-672-24-2
Caution: Do not connect the electrical wire to the
solenoid when the plunger has been removed.
Without the plunger the valve can be damaged.
Malfunctioning valves can be diagnosed by removing
the plunger and spring, then reinstall the solenoid.
Delivery Valves (Back Leakage Valves On Lucas
CAV Pumps)
There is a valve for each discharge tube. The purpose
of the valve is to control the residual pressure in the
high pressure line. A malfunctioning valve will cause an
imbalance of the residual pressure resulting in rough
engine operation or surging.
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