1. Remove the locking plate, screw and O-ring seal from the head of the injection pump. (This procedure may require removing and installing the intake…

1. Check injection pump housing pressure in the following steps: A. Remove the housing pressure regulator from the injection pump governor cover. B. Install a…

1. Check the output volume of the lift pump in the following steps: A. Remove the electrical connector for the fuel shut-off solenoid at the…

Note: The hydrometer fuel quality tester provides a general indication of fuel quality and should not be considered scientifically accurate. 1. Drain the fuel filter…

Fuel Contamination Inspection and Cleaning Note: This procedure checks for the presence of water and gasoline in diesel fuel that may cause injection pump and…

The fuel return system has several different sizes and types of hoses and pipes connected to each other and sealed with compression-type clamps. The injection…

Construction and Operation Each cylinder has an identical fuel injection nozzle mounted in the pre-combustion chamber, using threads and a copper sealing gasket. A specific…

The high-pressure discharge fittings on the head of the injection pump connect to the injection nozzles with steel lines of equal length and interior volume…

Since several calibration adjustments are disturbed during disassembly, most injection pump repairs are made by an authorized Stanadyne diesel injection repair service. Repairs to the…

Diagnosis of the fuel injection pump includes the following diagnostic steps (more detail for these checks can be found at the end of this section):…