Fuel Pump: Locations

Fuel pump: XJ6 Sedan 1990 MY

Fuel is drawn from the fuel tank by an electric pump located on the rear subframe and is delivered to the fuel rail through a renewable filter mounted to the underbody. Unused fuel is returned to the tank swirl chamber where it passes through a venturi before mixing with the remaining fuel in the tank. This action cools the returning fuel.

The in-line fuel pump is a roller type pump driven by a permanent magnet electric motor. An eccentric rotor mounted on the armature shaft has metal rollers housed in pockets around the circumference. When the motor is energized, centrifugal force acting on the rollers forces them outward so that they act as seals. The fuel between the rollers is then forced to the outlet side of the pump.