The speed advance device (Figure 4-58) is used to achieve best engine performance through the operating speed range of the engine. Timing advance is needed…

All Stanadyne Diesel Systems DB2 Automotive pumps are equipped with electrical shut-off solenoids. (Figure 4-57). Illustrated here is an energized to run solenoid. When this…

The return oil system (Figure 4-55) performs the following functions. 1.) A controlled flow through the housing maintains stable conditions for the internal parts. 2.)…

Another unique and very simple feature of the DB2 automotive pump is a viscosity compensating device. This component ensures proper transfer pump pressure regardless of…

In order to understand how designed fuel pressures are maintained over a broad range of conditions we’ll now take a closer look at regulator assembly…

Now for a closer look at some of the systems and components mentioned earlier in the program. Where model year design differences exist they will…

While the discharge port is open, the movement of the rotor causes the rollers to contact the cam lobes, forcing the plungers together. The fuel…

As the rotor revolves, the two rotor inlet passages register with charging ports in the hydraulic head. (Figure 4-40). This allows fuel to flow into…

The general operating principal of the pump may be easily understood by following the fuel circuit through the pump. FUEL FLOW First, the fuel is…

The main rotating components (Figure 4-32) are the drive shaft, the distributor rotor, the transfer pump blades and the governor. The drive shaft engages the…