Rodney McDonald wrote:
>my brother, also an LBC'er. He has an aftermarket
>fuel pump on his '76 'B that is delivering 7psi. Will this >delivery
pressure
>cause rich running? He has installed recently rebuilt SU HIF 4 >carbs and
has
>them leaned out all the way and it still runs rich. He has the >SU fuel
pump
>and intends to rebuild and install it. I'd like to convince him >to do it
>before we set out for the New Orleans British Car Festival in >March.
Thanks
>in advance for all assistance rendered.
Rodney,
The fuel pressure of 7 psi is too high for SU's. Electronic fuel pumps with
a pressure of 3 psi are available, or a fuel pressure regulator could be
used to solve the problem. Rebuilding the SU pump of course would take care
of it.
Rich
'70 MGB Roadster
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