[Healeys] Dual fuel pumps

[Oudesluys]

Keith,
I do understand why you want to put them in series but if you 
accidentally switch them on both you have double the fuel pressure. 
Better fit them parallel with an electrically operated valve (4) before 
and after each switch. The valves are operated by the same feed wire as 
the corresponding pump. These valves are easily sourced from LPG fitters.
This way there is no circulation through the faulty pump and you will 
have no leakage if something horrible has happened to a pump.
Kees Oudesluijs

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