Re: Re: Electric fuel pumps

I have an SU electric pump mounted next to the fuel tank on my Light 15. Definitely a boon when starting after the car has been idle for a week or so, since it primes the carburettor without having to crank the engine, so it is easier on the battery. 6volt versions are available. The SU has a pressure sensor built in and does not pump when the needle valve is closed by the float and is also fairly tolerant of contamination such as small flakes of rust. Other types will need a pre-filter. Some electric pumps , such as the Facet type, just pump continuously, in a stalled condition, whether they can deliver the fuel or not, and can be noisy. You also need to review the output pressure of pumps like this, which may need a separate pressure regulator to avoid flooding the carburettor at low revs. This isn’t necessary with the SU.
Electric pumps are also either pushers or pullers. Pushers are mounted by the fuel tank, pullers can be mounted in the engine bay, rather like a Morris 1000.
With an electric pump, you can also immobilise the car with a discreet switch somewhere in the circuit.
If you go electric make sure that you use resilient mounts to avoid the noise that some pumps can make, transmitting into the car.
Burlen are the people if you want to go down the SU route.

https://burlen.co.uk/