01-08-2021, 09:19 AM
Steve, I haven't used a small modern pump with a Seven but I have some experience, both first and second hand, of the modern Facet-type pump in other machines. If you use such a pump you will need to be aware of how much pressure it produces. If you are using an SU or other conventional carb. such as a Solex or Zenith I would hesitate to use a fuel pressure much over 1 or 1.5 psi. With the vast majority of the modern pumps I think you will need to use a pressure regulator as well to achieve this. You should be able to find a regulator that will go down to a low enough pressure but they are not all able to do this.
As you will have gathered from the first sentence, my preference is to use an SU pump with the sort of carburettor we favour, choosing an appropriate SU pump for its location.
Regards,
Stuart
As you will have gathered from the first sentence, my preference is to use an SU pump with the sort of carburettor we favour, choosing an appropriate SU pump for its location.
Regards,
Stuart