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General| Brand | Stanadyne |
|---|---|
| Model | DE |
| Category | Water Pump |
| Language | English |
Provides qualified technicians information to disassemble, reassemble, and test the Stanadyne DE electronic diesel fuel injection pump.
Explains the information on the DE pump nameplate and its meaning for pump identification.
Describes the model DE pump as an opposed plunger, rotary distributor, electronically controlled, spill solenoid type of pump.
Details the main components of the DE pump and their functions, including rotating parts and hydraulic head assembly.
Explains the DE pump's electrical system, including the thermistor and its connection to the Engine Control Module (ECM).
Describes how fuel is drawn from the tank, pressurized by the transfer pump, and flows through the injection pump.
Explains the positive displacement vane type fuel transfer pump's design and pumping principle.
Details the transfer pump pressure regulator, its components, and operation to control fuel pressure.
Explains how the pumping chamber is filled with fuel under transfer pump pressure during the charging phase.
Describes the spill-pump-spill fueling strategy, including injection pressure and solenoid control.
Explains the function of snubber plates in the discharge fittings to control injection pressure and prevent secondary injections.
Details the return fuel circuit, including how housing pressure is maintained and air is purged.
Explains how pump timing is controlled by the ECM through spill-pump-spill events, without cam ring rotation.
Details inspection of all parts, including o-rings, springs, moving parts, and checking for wear, cracks, and contamination.
Provides information on poppet valve shims, their measurement, and replacement if misplaced.
Covers inspection of the housing for cracks, damage, and wear in screw holes, and the fit of internal components.
Lists special test bench accessories and components required for testing the DE pump according to standards.
Provides instructions for mounting the DE pump to the test bench, including adapter and fixture details.
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