Fuel Pump Guide.
The pump you need will depend upon a number of factors, such as what vehicle you are fitting the pump to, the engine type and power, and even where in the vehicle you are fitting the pump. Below you will see a rough guide to which pump you might need.
Solid State. (cube). Also known as the electronic fuel pump, this is a compact fuel pump, with only 1 moving part which makes it very reliable. These pumps are great if fitted correctly. They must be pre-filtered (see picture at the top of the page, second from right.) The pump has a small lift capability of approx 12 inches (300mm), with this in mind, the pump must be fitted below the level of the fuel, and within 12 inches of the tank. It is also advised to fit at 45 deg. Solid state pumps are a good solution in these circumstances only.
Fast road is suitable for engines upto around 150bhp, Competition is suitable upto around 200bhp. Neither are suitable for fuel injection. Union size for both is 1/8 nptf.
Interupter. (cylindrical) The interupter pump (top left picture) is a more robust and forgiving fuel pump. It is somewhat larger than the cube type pump. Lift capacity is far greater than with the cube type pumps, and thus can be fitted away from the fuel tank. It should be mounted upright, with the removable cap at the bottom. These pumps have an internal filter, which can be changed by removing the bottom cap.
Silver Top is suitable for engines upto around 160bhp, Red Top upto around 200bhp and Blue top (by special order only) to approx 300bhp. Union sizes are: Silver top = 1/8 nptf, Red + Blue top = 1/4 nptf. Again, non of these are suitable for fuel injection.
"My solid state pump is very noisey" - This is quite normal. Solid state and interupter pumps are quite noisey due to the way in which they work, you can reduce the transmited noise by using a Facet Fuel Pump Fitting Kit, which includes rubber mounts.
"My pump is not working" - Facet Fuel Pumps are all tested before they leave the U.K. importer, there is unlikely to be a fault with the pump. Following this checklist should solve the problem:
1. Ensure there is a 12v supply to the pump.
2. Ensure the pump is fitted as per the instructions, regarding height and distance from the fuel source.
3. Ensure that the pump is fitted the correct way round, and on the pick up side of the fuel system. (there may be 3 exits from the tank, be sure you get the right one)
4. Ensure the unions are correctly fitted, use ptfe tape, but be sure not to cover the port. If there is an air leak, the pump will suck air and not fuel.
5. If there is a cut off tap, make sure it is on! This has been known to happen, so please do not dismiss the idea.
6. Check for any damaged of collapsed fuel lines, a kink may stop fuel flowing. Also check that they are clean and free from obstruction inside.
7. occasionally it has been known to need to "prime" the pump by ensuring there is fuel all the way from the tank to the pump. The reason for this is unknown, but it has been known to cure the problem. Once done, it may need never to be done again.
"can I buy spare parts for my pump?" - Yes, although there are fewer parts available for the solid state pump due to the way they are made. We can supply any part which is available, or we can send your pump away for repair for you (charges apply), we can also offer advice over the phone so don't be shy, if you have a question, just ask.