Workshop Manuals Factory service & repair Rover
Rover Rover 600 Repair Manual - Volumes 1 and 2 - 2nd Edition04 · Engine management system – PGM-Fi
04 · Engine

Operation

Make
Rover
Model
600 Rover 600 Repair Manual - Volumes 1 and 2 - 2nd Edition
Section
Information › Operation
Engine management system – PGM-FiOperation
External view of the fuel pump assembly showing the fuel pump, fuel filter, and fuel pump bracket
Cross section side view of the fuel pump showing internal components including relief valve, cover, impeller, casing, armature coil, and check valve
Top view cross section of the fuel pump showing discharge port, inlet port, and grooves on the impeller
AFuel pumpHFuel pump casing
BFuel filterJArmature coil
CFuel pump bracketKCheck valve
DFuel pump cross section (side view)LFuel pump cross section (top view)
ERelief valveMDischarge port
FFuel pump coverNInlet port
GImpellerOGrooves

Because of its compact impeller design, the fuel pump (FP) is installed inside the fuel tank, thereby saving space and simplifying the fuel line system.

The fuel pump is comprised of a DC motor, a circumference flow pump, a relief valve for protecting the fuel line systems, a check valve for retaining residual pressure, an inlet port, and a discharge port. The fuel pump assembly consists of the impeller (driven by the motor), the fuel pump casing (which forms the pumping chamber), and the fuel pump cover.

Operation

  1. When the engine is started, the PGM – Fi main relay actuates the fuel pump, and the motor turns together with the impeller. Differential pressure is generated by the numerous grooves around the impeller.
  2. Fuel entering the inlet port flows inside the motor from the pumping chamber and is forced through the discharge port via the check valve. If fuel flow is obstructed at the discharge side of the fuel line, the relief valve will open to bypass the fuel to the inlet port and prevent excessive fuel pressure.

Parts & tools for this job For Rover 600

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