Triumph TR8 V8 Fuel Pump (All Applications) - Efi Engines
Rover SD1 and TR8 carb vehicles both have in-tank fuel pumps, which deliver approximately 4.5psi pressure (ie. usually sufficient for a Holley or Weber carb but inadequate for efi).
Rover SD1 Efi vehicles have a high pressure fuel pump (delivering around 40psi), mounted very close to, but outside, the base of the fuel tank.
Early, non power steering, V8 engines have a mechanical fuel pump bolted to the timing cover and driven by a lobe on the camshaft spacer.
Power steering equipped cars usually have an electric fuel pump (due to the location of the P.A.S. pump where the fuel pump had previously been).
Early P.A.S. equipped Range Rovers have an electric pump in the engine bay.
From 1986, the fuel pump for both carb and Efi Range Rovers is fitted inside the fuel tank. However, the two types are not interchangeable, as the Efi pump is a high pressure type not suitable for carb vehicles.
Up to approximately 1991, the in-tank fuel pump is separate from the fuel level sender. From 1991 onwards, the pump and sender unit are combined.